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Finding the Fourth Proportional to 131,414.70, 197,190.90 and 60,358.80

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Solution

The fourth proportional to 131,414.70, 197,190.90 and 60,358.80 is: 90,569.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,414.70 : 197,190.90 = 60,358.80 : x
  2. Step 2: Convert to fraction form
    131,414.70/197,190.90 = 60,358.80/x
  3. Step 3: Cross multiply
    131,414.70x = 197,190.90 × 60,358.80
  4. Step 4: Simplify right side
    131,414.70x = 11,902,206,094.92
  5. Step 5: Solve for x
    x = 11,902,206,094.92/131,414.70
  6. Step 6: Final answer
    x = 90,569.82

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1.5x scale

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.