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Finding the Fourth Proportional to 119,906.92, 179,631.42 and 67,156.84

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Solution

The fourth proportional to 119,906.92, 179,631.42 and 67,156.84 is: 100,607.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,906.92 : 179,631.42 = 67,156.84 : x
  2. Step 2: Convert to fraction form
    119,906.92/179,631.42 = 67,156.84/x
  3. Step 3: Cross multiply
    119,906.92x = 179,631.42 × 67,156.84
  4. Step 4: Simplify right side
    119,906.92x = 12,063,478,531.91
  5. Step 5: Solve for x
    x = 12,063,478,531.91/119,906.92
  6. Step 6: Final answer
    x = 100,607.03

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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.