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Finding the Fourth Proportional to 41,200.80, 61,801.20 and 40,471.80

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Solution

The fourth proportional to 41,200.80, 61,801.20 and 40,471.80 is: 60,707.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,200.80 : 61,801.20 = 40,471.80 : x
  2. Step 2: Convert to fraction form
    41,200.80/61,801.20 = 40,471.80/x
  3. Step 3: Cross multiply
    41,200.80x = 61,801.20 × 40,471.80
  4. Step 4: Simplify right side
    41,200.80x = 2,501,205,806.16
  5. Step 5: Solve for x
    x = 2,501,205,806.16/41,200.80
  6. Step 6: Final answer
    x = 60,707.70

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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.