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Finding the Fourth Proportional to 71,497.28, 106,764.34 and 58,375.28

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Solution

The fourth proportional to 71,497.28, 106,764.34 and 58,375.28 is: 87,169.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,497.28 : 106,764.34 = 58,375.28 : x
  2. Step 2: Convert to fraction form
    71,497.28/106,764.34 = 58,375.28/x
  3. Step 3: Cross multiply
    71,497.28x = 106,764.34 × 58,375.28
  4. Step 4: Simplify right side
    71,497.28x = 6,232,398,241.52
  5. Step 5: Solve for x
    x = 6,232,398,241.52/71,497.28
  6. Step 6: Final answer
    x = 87,169.73

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.