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Finding the Fourth Proportional to 123,715.92, 185,641.11 and 53,600.70

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Solution

The fourth proportional to 123,715.92, 185,641.11 and 53,600.70 is: 80,430.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,715.92 : 185,641.11 = 53,600.70 : x
  2. Step 2: Convert to fraction form
    123,715.92/185,641.11 = 53,600.70/x
  3. Step 3: Cross multiply
    123,715.92x = 185,641.11 × 53,600.70
  4. Step 4: Simplify right side
    123,715.92x = 9,950,493,444.78
  5. Step 5: Solve for x
    x = 9,950,493,444.78/123,715.92
  6. Step 6: Final answer
    x = 80,430.18

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1.5x scale

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.