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Finding the Fourth Proportional to 80,793.90, 121,190.85 and 41,427.90

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Solution

The fourth proportional to 80,793.90, 121,190.85 and 41,427.90 is: 62,141.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,793.90 : 121,190.85 = 41,427.90 : x
  2. Step 2: Convert to fraction form
    80,793.90/121,190.85 = 41,427.90/x
  3. Step 3: Cross multiply
    80,793.90x = 121,190.85 × 41,427.90
  4. Step 4: Simplify right side
    80,793.90x = 5,020,682,414.72
  5. Step 5: Solve for x
    x = 5,020,682,414.72/80,793.90
  6. Step 6: Final answer
    x = 62,141.85

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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.