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Finding the Fourth Proportional to 269,353.92, 404,149.89 and 141,239.61

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Solution

The fourth proportional to 269,353.92, 404,149.89 and 141,239.61 is: 211,921.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,353.92 : 404,149.89 = 141,239.61 : x
  2. Step 2: Convert to fraction form
    269,353.92/404,149.89 = 141,239.61/x
  3. Step 3: Cross multiply
    269,353.92x = 404,149.89 × 141,239.61
  4. Step 4: Simplify right side
    269,353.92x = 57,081,972,845.14
  5. Step 5: Solve for x
    x = 57,081,972,845.14/269,353.92
  6. Step 6: Final answer
    x = 211,921.82

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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.