One Item Is Omitted in Each of the Following Summaries

One item is omitted in each of the following summaries of balance sheet and income statement data for three different sole proprietorships, X, Y, and Z. Determine the amounts of the missing items, identifying each proprietorship by letter. $\begin{array}{lccc}&&\text { Proprietorship }\\&X&Y&Z\\\text { Beginning of the Year: } \\\text { Assets } & \$ 390,000 & \$ 150,000 & \$ 215,000 \\\text { Liabilities } & 240,000 & 105,000 & 168,000 \\\text { End of the Year: } & & & \\\text { Assets } & 450,000 & 175,000 & 195,000 \\\text { Liabilities } & 275,000 & 90,000 & 170,000\\\text { During the Year: }\\\text { Additional investment by the owner }&?&74,000&80,000\\\text { Withdrawals by the owner } & 95,000 & 83,000 & ? \\& 195,000 & ? & 185,000 \\\text { Expenses } & 160,000 & 113,000 & 175,000\end{array}$