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Finding the Fourth Proportional to 61,449.60, 92,174.68 and 21,468.41

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Solution

The fourth proportional to 61,449.60, 92,174.68 and 21,468.41 is: 32,202.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,449.60 : 92,174.68 = 21,468.41 : x
  2. Step 2: Convert to fraction form
    61,449.60/92,174.68 = 21,468.41/x
  3. Step 3: Cross multiply
    61,449.60x = 92,174.68 × 21,468.41
  4. Step 4: Simplify right side
    61,449.60x = 1,978,843,463.42
  5. Step 5: Solve for x
    x = 1,978,843,463.42/61,449.60
  6. Step 6: Final answer
    x = 32,202.71

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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.