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Finding the Fourth Proportional to 123,737.87, 170,758.25 and 67,149.24

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Solution

The fourth proportional to 123,737.87, 170,758.25 and 67,149.24 is: 92,665.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,737.87 : 170,758.25 = 67,149.24 : x
  2. Step 2: Convert to fraction form
    123,737.87/170,758.25 = 67,149.24/x
  3. Step 3: Cross multiply
    123,737.87x = 170,758.25 × 67,149.24
  4. Step 4: Simplify right side
    123,737.87x = 11,466,286,627.29
  5. Step 5: Solve for x
    x = 11,466,286,627.29/123,737.87
  6. Step 6: Final answer
    x = 92,665.95

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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.