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Finding the Fourth Proportional to 149,387.70, 224,081.55 and 38,579.70

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Solution

The fourth proportional to 149,387.70, 224,081.55 and 38,579.70 is: 57,869.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,387.70 : 224,081.55 = 38,579.70 : x
  2. Step 2: Convert to fraction form
    149,387.70/224,081.55 = 38,579.70/x
  3. Step 3: Cross multiply
    149,387.70x = 224,081.55 × 38,579.70
  4. Step 4: Simplify right side
    149,387.70x = 8,644,998,974.54
  5. Step 5: Solve for x
    x = 8,644,998,974.54/149,387.70
  6. Step 6: Final answer
    x = 57,869.55

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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.