Good Evening and thanks in ADVANCE for looking at my
problem. Please send me or reply with any code/equation
idea that makes sense

I have a workbook that contains 6 worksheets.

1=RegQList
2=289
3=Fisher
4=Grove
5=Sprauge
6=Mooney
(Exactly as typed)

I have in the RegQList hundreds and hundreds ,I think
2700 specific and unique Regulators that I need, no must
calculate, various equations for. What I have figured
out is that if I was smart enough to create a LOOKUP or
smart eqations to find
MAKE- Cell J2/MODEL-Cell K2/SIZE-Cell L2/ORIFACE-Cell M2

on each line in the RegQList then if you could help me
create the code to look at the 5 other worksheets find
the matching MAKE-Cell J2, then within that 1 of 5
sheets match-up MODEL/SIZE/ORIFACE (which on the 5 sheets
is always column A-MAKE/B-MODEL/C-SIZE/D-ORIFACE when
that match is located/solved I want the number known as
Cg which is already in COLUMN E of the same Cell rows as
the matching specific make regulator.

I would like that number returned, or so I wish to place
this lookup equation to place the Cg for each specific
Regulator in AA2 of RegQList. Then with that Cg factor I
can return to my basic Excel skills and create the needed
equation of (1.29) X ( SUM H2+14.7) X (SUM AA2) this
equals Q or Flow. The 1.29 and 14.7 are constant numbers
to calculate Flow.

I am going to play with this all night and morning. SO
if you think that you can help me figure this out I would
appreciate it so much I don't think you can even begin to
understand. This is something that I was given months
ago and I think was under the impression that the need
for the data was disregarded and found out today that is
needed tommorow.