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Finding the Fourth Proportional to 104,318.43, 156,471.16 and 33,239.31

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Solution

The fourth proportional to 104,318.43, 156,471.16 and 33,239.31 is: 49,856.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,318.43 : 156,471.16 = 33,239.31 : x
  2. Step 2: Convert to fraction form
    104,318.43/156,471.16 = 33,239.31/x
  3. Step 3: Cross multiply
    104,318.43x = 156,471.16 × 33,239.31
  4. Step 4: Simplify right side
    104,318.43x = 5,200,993,393.30
  5. Step 5: Solve for x
    x = 5,200,993,393.30/104,318.43
  6. Step 6: Final answer
    x = 49,856.90

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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.