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Finding the Fourth Proportional to 79,355.92, 119,033.88 and 31,992.52

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Solution

The fourth proportional to 79,355.92, 119,033.88 and 31,992.52 is: 47,988.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,355.92 : 119,033.88 = 31,992.52 : x
  2. Step 2: Convert to fraction form
    79,355.92/119,033.88 = 31,992.52/x
  3. Step 3: Cross multiply
    79,355.92x = 119,033.88 × 31,992.52
  4. Step 4: Simplify right side
    79,355.92x = 3,808,193,786.58
  5. Step 5: Solve for x
    x = 3,808,193,786.58/79,355.92
  6. Step 6: Final answer
    x = 47,988.78

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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.