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Finding the Fourth Proportional to 80,062.56, 120,029.04 and 33,350.40

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Solution

The fourth proportional to 80,062.56, 120,029.04 and 33,350.40 is: 49,998.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,062.56 : 120,029.04 = 33,350.40 : x
  2. Step 2: Convert to fraction form
    80,062.56/120,029.04 = 33,350.40/x
  3. Step 3: Cross multiply
    80,062.56x = 120,029.04 × 33,350.40
  4. Step 4: Simplify right side
    80,062.56x = 4,003,016,495.62
  5. Step 5: Solve for x
    x = 4,003,016,495.62/80,062.56
  6. Step 6: Final answer
    x = 49,998.61

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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.