On Wed, 26 Nov 2008 14:31:25 -0600, "Karl Townsend"
wrote:

...
There's some inconsistency in your ratios. Using 163.05 : 1000 or
ratio of 0.16305, I get close matches for

8/49 = 0.16327
15/92 = 0.16304

Using your ratio of 1 : 6.1245 = 0.16304, 15/92 is a good match.

I might have known you'd be the one to figure it out. Surely you didn't just
guess this ratio. How'd you do it?

Karl

I used MathCAD. No doubt others will provide more erudite approaches.