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Finding the Fourth Proportional to 156,989.70, 235,441.35 and 63,504.90

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Solution

The fourth proportional to 156,989.70, 235,441.35 and 63,504.90 is: 95,239.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,989.70 : 235,441.35 = 63,504.90 : x
  2. Step 2: Convert to fraction form
    156,989.70/235,441.35 = 63,504.90/x
  3. Step 3: Cross multiply
    156,989.70x = 235,441.35 × 63,504.90
  4. Step 4: Simplify right side
    156,989.70x = 14,951,679,387.62
  5. Step 5: Solve for x
    x = 14,951,679,387.62/156,989.70
  6. Step 6: Final answer
    x = 95,239.87

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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.