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Finding the Fourth Proportional to 166,842.40, 250,219.80 and 61,691.44

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Solution

The fourth proportional to 166,842.40, 250,219.80 and 61,691.44 is: 92,520.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,842.40 : 250,219.80 = 61,691.44 : x
  2. Step 2: Convert to fraction form
    166,842.40/250,219.80 = 61,691.44/x
  3. Step 3: Cross multiply
    166,842.40x = 250,219.80 × 61,691.44
  4. Step 4: Simplify right side
    166,842.40x = 15,436,419,778.51
  5. Step 5: Solve for x
    x = 15,436,419,778.51/166,842.40
  6. Step 6: Final answer
    x = 92,520.96

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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.