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Finding the Fourth Proportional to 225,551.90, 338,115.92 and 75,687.08

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Solution

The fourth proportional to 225,551.90, 338,115.92 and 75,687.08 is: 113,459.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,551.90 : 338,115.92 = 75,687.08 : x
  2. Step 2: Convert to fraction form
    225,551.90/338,115.92 = 75,687.08/x
  3. Step 3: Cross multiply
    225,551.90x = 338,115.92 × 75,687.08
  4. Step 4: Simplify right side
    225,551.90x = 25,591,006,944.94
  5. Step 5: Solve for x
    x = 25,591,006,944.94/225,551.90
  6. Step 6: Final answer
    x = 113,459.51

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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.