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Finding the Fourth Proportional to 129,793.96, 179,115.30 and 70,177.96

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Solution

The fourth proportional to 129,793.96, 179,115.30 and 70,177.96 is: 96,845.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,793.96 : 179,115.30 = 70,177.96 : x
  2. Step 2: Convert to fraction form
    129,793.96/179,115.30 = 70,177.96/x
  3. Step 3: Cross multiply
    129,793.96x = 179,115.30 × 70,177.96
  4. Step 4: Simplify right side
    129,793.96x = 12,569,946,358.79
  5. Step 5: Solve for x
    x = 12,569,946,358.79/129,793.96
  6. Step 6: Final answer
    x = 96,845.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.