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Finding the Fourth Proportional to 131,462.60, 197,193.90 and 115,910.60

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Solution

The fourth proportional to 131,462.60, 197,193.90 and 115,910.60 is: 173,865.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,462.60 : 197,193.90 = 115,910.60 : x
  2. Step 2: Convert to fraction form
    131,462.60/197,193.90 = 115,910.60/x
  3. Step 3: Cross multiply
    131,462.60x = 197,193.90 × 115,910.60
  4. Step 4: Simplify right side
    131,462.60x = 22,856,863,265.34
  5. Step 5: Solve for x
    x = 22,856,863,265.34/131,462.60
  6. Step 6: Final answer
    x = 173,865.90

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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.