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Finding the Fourth Proportional to 123,737.73, 170,758.53 and 67,149.11

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Solution

The fourth proportional to 123,737.73, 170,758.53 and 67,149.11 is: 92,666.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,737.73 : 170,758.53 = 67,149.11 : x
  2. Step 2: Convert to fraction form
    123,737.73/170,758.53 = 67,149.11/x
  3. Step 3: Cross multiply
    123,737.73x = 170,758.53 × 67,149.11
  4. Step 4: Simplify right side
    123,737.73x = 11,466,282,460.62
  5. Step 5: Solve for x
    x = 11,466,282,460.62/123,737.73
  6. Step 6: Final answer
    x = 92,666.02

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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.