Evaluate the value of $?$ in the given expression: $\sqrt{4624} \div 17 \times 4.25 + 58.33\% \text{ of } 864 - 37.5\% \text{ of } 648 = ?^2 - 125$

1) $\sqrt{4624} = 68$. $68 \div 17 \times 4.25 = 4 \times 4.25 = 17$. 2) $58.33\% = 50\% + 8.33\% = \frac{1}{2} + \frac{1}{12} = \frac{7}{12}$. $\frac{7}{12} \times 864 = 7 \times 72 = 504$. 3) $37.5\% = \frac{3}{8}$. $\frac{3}{8} \times 648 = 3 \times 81 = 243$. Combining LHS: $17 + 504 - 243 = 278$. Now, $278 = ?^2 - 125 \implies ?^2 = 403$, which is not a perfect square, so the answer is 'None of these'.