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Finding the Fourth Proportional to 71,630.55, 107,298.17 and 41,958.43

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Solution

The fourth proportional to 71,630.55, 107,298.17 and 41,958.43 is: 62,851.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,630.55 : 107,298.17 = 41,958.43 : x
  2. Step 2: Convert to fraction form
    71,630.55/107,298.17 = 41,958.43/x
  3. Step 3: Cross multiply
    71,630.55x = 107,298.17 × 41,958.43
  4. Step 4: Simplify right side
    71,630.55x = 4,502,062,277.04
  5. Step 5: Solve for x
    x = 4,502,062,277.04/71,630.55
  6. Step 6: Final answer
    x = 62,851.15

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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.