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Finding the Fourth Proportional to 127,809.14, 191,706.73 and 39,062.61

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Solution

The fourth proportional to 127,809.14, 191,706.73 and 39,062.61 is: 58,591.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,809.14 : 191,706.73 = 39,062.61 : x
  2. Step 2: Convert to fraction form
    127,809.14/191,706.73 = 39,062.61/x
  3. Step 3: Cross multiply
    127,809.14x = 191,706.73 × 39,062.61
  4. Step 4: Simplify right side
    127,809.14x = 7,488,565,033.05
  5. Step 5: Solve for x
    x = 7,488,565,033.05/127,809.14
  6. Step 6: Final answer
    x = 58,591.78

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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.