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Finding the Fourth Proportional to 376,081.92, 564,118.56 and 126,938.88

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Solution

The fourth proportional to 376,081.92, 564,118.56 and 126,938.88 is: 190,406.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,081.92 : 564,118.56 = 126,938.88 : x
  2. Step 2: Convert to fraction form
    376,081.92/564,118.56 = 126,938.88/x
  3. Step 3: Cross multiply
    376,081.92x = 564,118.56 × 126,938.88
  4. Step 4: Simplify right side
    376,081.92x = 71,608,578,193.61
  5. Step 5: Solve for x
    x = 71,608,578,193.61/376,081.92
  6. Step 6: Final answer
    x = 190,406.86

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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.