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Finding the Fourth Proportional to 221,832.68, 332,712.57 and 79,648.52

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Solution

The fourth proportional to 221,832.68, 332,712.57 and 79,648.52 is: 119,459.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,832.68 : 332,712.57 = 79,648.52 : x
  2. Step 2: Convert to fraction form
    221,832.68/332,712.57 = 79,648.52/x
  3. Step 3: Cross multiply
    221,832.68x = 332,712.57 × 79,648.52
  4. Step 4: Simplify right side
    221,832.68x = 26,500,063,785.90
  5. Step 5: Solve for x
    x = 26,500,063,785.90/221,832.68
  6. Step 6: Final answer
    x = 119,459.69

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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.