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Finding the Fourth Proportional to 71,881.29, 99,167.90 and 48,023.55

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Solution

The fourth proportional to 71,881.29, 99,167.90 and 48,023.55 is: 66,253.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,881.29 : 99,167.90 = 48,023.55 : x
  2. Step 2: Convert to fraction form
    71,881.29/99,167.90 = 48,023.55/x
  3. Step 3: Cross multiply
    71,881.29x = 99,167.90 × 48,023.55
  4. Step 4: Simplify right side
    71,881.29x = 4,762,394,363.93
  5. Step 5: Solve for x
    x = 4,762,394,363.93/71,881.29
  6. Step 6: Final answer
    x = 66,253.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.