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Finding the Fourth Proportional to 123,737.88, 170,761.56 and 67,149.24

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Solution

The fourth proportional to 123,737.88, 170,761.56 and 67,149.24 is: 92,667.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,737.88 : 170,761.56 = 67,149.24 : x
  2. Step 2: Convert to fraction form
    123,737.88/170,761.56 = 67,149.24/x
  3. Step 3: Cross multiply
    123,737.88x = 170,761.56 × 67,149.24
  4. Step 4: Simplify right side
    123,737.88x = 11,466,508,975.21
  5. Step 5: Solve for x
    x = 11,466,508,975.21/123,737.88
  6. Step 6: Final answer
    x = 92,667.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.