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Finding the Fourth Proportional to 123,707.66, 185,472.18 and 52,591.28

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Solution

The fourth proportional to 123,707.66, 185,472.18 and 52,591.28 is: 78,848.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,707.66 : 185,472.18 = 52,591.28 : x
  2. Step 2: Convert to fraction form
    123,707.66/185,472.18 = 52,591.28/x
  3. Step 3: Cross multiply
    123,707.66x = 185,472.18 × 52,591.28
  4. Step 4: Simplify right side
    123,707.66x = 9,754,218,423.23
  5. Step 5: Solve for x
    x = 9,754,218,423.23/123,707.66
  6. Step 6: Final answer
    x = 78,848.95

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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.