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Finding the Fourth Proportional to 80,443.97, 120,660.64 and 33,046.68

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Solution

The fourth proportional to 80,443.97, 120,660.64 and 33,046.68 is: 49,567.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,443.97 : 120,660.64 = 33,046.68 : x
  2. Step 2: Convert to fraction form
    80,443.97/120,660.64 = 33,046.68/x
  3. Step 3: Cross multiply
    80,443.97x = 120,660.64 × 33,046.68
  4. Step 4: Simplify right side
    80,443.97x = 3,987,433,928.54
  5. Step 5: Solve for x
    x = 3,987,433,928.54/80,443.97
  6. Step 6: Final answer
    x = 49,567.84

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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.