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Finding the Fourth Proportional to 159,871.44, 220,624.11 and 88,249.92

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Solution

The fourth proportional to 159,871.44, 220,624.11 and 88,249.92 is: 121,785.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,871.44 : 220,624.11 = 88,249.92 : x
  2. Step 2: Convert to fraction form
    159,871.44/220,624.11 = 88,249.92/x
  3. Step 3: Cross multiply
    159,871.44x = 220,624.11 × 88,249.92
  4. Step 4: Simplify right side
    159,871.44x = 19,470,060,057.57
  5. Step 5: Solve for x
    x = 19,470,060,057.57/159,871.44
  6. Step 6: Final answer
    x = 121,785.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.