I won $270 in a competition recently and I decided to share the whole of it between my three grandchildren in the ratio of their ages. When I gave them their money today, 8-year-old James, 6-year-old Sarah and 4-year-old Lucy all thanked me. However, Sarah did point out that her birthday is only three weeks away and Lucy’s birthday is next week. How much more would Sarah have received if I had shared out the money immediately after her birthday instead of today?