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Finding the Fourth Proportional to 125,057.73, 187,452.05 and 54,013.79

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Solution

The fourth proportional to 125,057.73, 187,452.05 and 54,013.79 is: 80,962.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,057.73 : 187,452.05 = 54,013.79 : x
  2. Step 2: Convert to fraction form
    125,057.73/187,452.05 = 54,013.79/x
  3. Step 3: Cross multiply
    125,057.73x = 187,452.05 × 54,013.79
  4. Step 4: Simplify right side
    125,057.73x = 10,124,994,456.44
  5. Step 5: Solve for x
    x = 10,124,994,456.44/125,057.73
  6. Step 6: Final answer
    x = 80,962.56

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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.