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Finding the Fourth Proportional to 218,498.28, 327,747.42 and 124,938.44

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Solution

The fourth proportional to 218,498.28, 327,747.42 and 124,938.44 is: 187,407.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,498.28 : 327,747.42 = 124,938.44 : x
  2. Step 2: Convert to fraction form
    218,498.28/327,747.42 = 124,938.44/x
  3. Step 3: Cross multiply
    218,498.28x = 327,747.42 × 124,938.44
  4. Step 4: Simplify right side
    218,498.28x = 40,948,251,368.82
  5. Step 5: Solve for x
    x = 40,948,251,368.82/218,498.28
  6. Step 6: Final answer
    x = 187,407.66

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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.