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Finding the Fourth Proportional to 361,372.38, 542,131.29 and 124,724.22

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Solution

The fourth proportional to 361,372.38, 542,131.29 and 124,724.22 is: 187,111.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,372.38 : 542,131.29 = 124,724.22 : x
  2. Step 2: Convert to fraction form
    361,372.38/542,131.29 = 124,724.22/x
  3. Step 3: Cross multiply
    361,372.38x = 542,131.29 × 124,724.22
  4. Step 4: Simplify right side
    361,372.38x = 67,616,902,282.84
  5. Step 5: Solve for x
    x = 67,616,902,282.84/361,372.38
  6. Step 6: Final answer
    x = 187,111.43

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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.