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Finding the Fourth Proportional to 79,772.92, 119,680.14 and 29,856.94

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Solution

The fourth proportional to 79,772.92, 119,680.14 and 29,856.94 is: 44,793.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,772.92 : 119,680.14 = 29,856.94 : x
  2. Step 2: Convert to fraction form
    79,772.92/119,680.14 = 29,856.94/x
  3. Step 3: Cross multiply
    79,772.92x = 119,680.14 × 29,856.94
  4. Step 4: Simplify right side
    79,772.92x = 3,573,282,759.17
  5. Step 5: Solve for x
    x = 3,573,282,759.17/79,772.92
  6. Step 6: Final answer
    x = 44,793.18

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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.