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Finding the Fourth Proportional to 121,779.92, 182,680.86 and 33,033.90

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Solution

The fourth proportional to 121,779.92, 182,680.86 and 33,033.90 is: 49,553.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,779.92 : 182,680.86 = 33,033.90 : x
  2. Step 2: Convert to fraction form
    121,779.92/182,680.86 = 33,033.90/x
  3. Step 3: Cross multiply
    121,779.92x = 182,680.86 × 33,033.90
  4. Step 4: Simplify right side
    121,779.92x = 6,034,661,261.15
  5. Step 5: Solve for x
    x = 6,034,661,261.15/121,779.92
  6. Step 6: Final answer
    x = 49,553.83

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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.