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Finding the Fourth Proportional to 127,593.96, 191,418.56 and 38,854.48

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Solution

The fourth proportional to 127,593.96, 191,418.56 and 38,854.48 is: 58,290.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,593.96 : 191,418.56 = 38,854.48 : x
  2. Step 2: Convert to fraction form
    127,593.96/191,418.56 = 38,854.48/x
  3. Step 3: Cross multiply
    127,593.96x = 191,418.56 × 38,854.48
  4. Step 4: Simplify right side
    127,593.96x = 7,437,468,611.15
  5. Step 5: Solve for x
    x = 7,437,468,611.15/127,593.96
  6. Step 6: Final answer
    x = 58,290.13

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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.