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Finding the Fourth Proportional to 269,759.24, 404,719.89 and 127,712.78

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Solution

The fourth proportional to 269,759.24, 404,719.89 and 127,712.78 is: 191,607.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,759.24 : 404,719.89 = 127,712.78 : x
  2. Step 2: Convert to fraction form
    269,759.24/404,719.89 = 127,712.78/x
  3. Step 3: Cross multiply
    269,759.24x = 404,719.89 × 127,712.78
  4. Step 4: Simplify right side
    269,759.24x = 51,687,902,273.19
  5. Step 5: Solve for x
    x = 51,687,902,273.19/269,759.24
  6. Step 6: Final answer
    x = 191,607.53

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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.