#SA of sphere with ratio
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So the ASF ratio of A to B is 25:36
We can square root this and then cube it to get the VSF ratio which is 125:216
The LSF for B to C is 2:3 so cubing it gives us a vsf of 8:27
We want the B value in both ratios to be the same so multiply the first by two and the second by 9 so A:B = 50:72 and B:C = 72:243
Hence A:C is 50:243