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Finding the Fourth Proportional to 225,891.27, 338,385.12 and 135,884.38

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Solution

The fourth proportional to 225,891.27, 338,385.12 and 135,884.38 is: 203,554.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,891.27 : 338,385.12 = 135,884.38 : x
  2. Step 2: Convert to fraction form
    225,891.27/338,385.12 = 135,884.38/x
  3. Step 3: Cross multiply
    225,891.27x = 338,385.12 × 135,884.38
  4. Step 4: Simplify right side
    225,891.27x = 45,981,250,540.50
  5. Step 5: Solve for x
    x = 45,981,250,540.50/225,891.27
  6. Step 6: Final answer
    x = 203,554.79

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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.