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Finding the Fourth Proportional to 158,759.28, 238,138.86 and 47,951.28

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Solution

The fourth proportional to 158,759.28, 238,138.86 and 47,951.28 is: 71,926.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,759.28 : 238,138.86 = 47,951.28 : x
  2. Step 2: Convert to fraction form
    158,759.28/238,138.86 = 47,951.28/x
  3. Step 3: Cross multiply
    158,759.28x = 238,138.86 × 47,951.28
  4. Step 4: Simplify right side
    158,759.28x = 11,419,063,154.74
  5. Step 5: Solve for x
    x = 11,419,063,154.74/158,759.28
  6. Step 6: Final answer
    x = 71,926.90

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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.