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Finding the Fourth Proportional to 71,363.80, 107,061.90 and 41,766.40

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Solution

The fourth proportional to 71,363.80, 107,061.90 and 41,766.40 is: 62,659.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,363.80 : 107,061.90 = 41,766.40 : x
  2. Step 2: Convert to fraction form
    71,363.80/107,061.90 = 41,766.40/x
  3. Step 3: Cross multiply
    71,363.80x = 107,061.90 × 41,766.40
  4. Step 4: Simplify right side
    71,363.80x = 4,471,590,140.16
  5. Step 5: Solve for x
    x = 4,471,590,140.16/71,363.80
  6. Step 6: Final answer
    x = 62,659.08

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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.