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Finding the Fourth Proportional to 123,737.01, 170,757.18 and 67,148.38

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Solution

The fourth proportional to 123,737.01, 170,757.18 and 67,148.38 is: 92,664.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,737.01 : 170,757.18 = 67,148.38 : x
  2. Step 2: Convert to fraction form
    123,737.01/170,757.18 = 67,148.38/x
  3. Step 3: Cross multiply
    123,737.01x = 170,757.18 × 67,148.38
  4. Step 4: Simplify right side
    123,737.01x = 11,466,068,010.37
  5. Step 5: Solve for x
    x = 11,466,068,010.37/123,737.01
  6. Step 6: Final answer
    x = 92,664.82

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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.