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Finding the Fourth Proportional to 71,610.46, 107,481.30 and 36,574.72

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Solution

The fourth proportional to 71,610.46, 107,481.30 and 36,574.72 is: 54,895.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,610.46 : 107,481.30 = 36,574.72 : x
  2. Step 2: Convert to fraction form
    71,610.46/107,481.30 = 36,574.72/x
  3. Step 3: Cross multiply
    71,610.46x = 107,481.30 × 36,574.72
  4. Step 4: Simplify right side
    71,610.46x = 3,931,098,452.74
  5. Step 5: Solve for x
    x = 3,931,098,452.74/71,610.46
  6. Step 6: Final answer
    x = 54,895.59

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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.