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Finding the Fourth Proportional to 516,695.63, 774,625.20 and 161,526.83

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Solution

The fourth proportional to 516,695.63, 774,625.20 and 161,526.83 is: 242,159.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,695.63 : 774,625.20 = 161,526.83 : x
  2. Step 2: Convert to fraction form
    516,695.63/774,625.20 = 161,526.83/x
  3. Step 3: Cross multiply
    516,695.63x = 774,625.20 × 161,526.83
  4. Step 4: Simplify right side
    516,695.63x = 125,122,749,120.99
  5. Step 5: Solve for x
    x = 125,122,749,120.99/516,695.63
  6. Step 6: Final answer
    x = 242,159.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.