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Finding the Fourth Proportional to 84,080.92, 126,128.66 and 24,109.68

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Solution

The fourth proportional to 84,080.92, 126,128.66 and 24,109.68 is: 36,166.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,080.92 : 126,128.66 = 24,109.68 : x
  2. Step 2: Convert to fraction form
    84,080.92/126,128.66 = 24,109.68/x
  3. Step 3: Cross multiply
    84,080.92x = 126,128.66 × 24,109.68
  4. Step 4: Simplify right side
    84,080.92x = 3,040,921,631.43
  5. Step 5: Solve for x
    x = 3,040,921,631.43/84,080.92
  6. Step 6: Final answer
    x = 36,166.61

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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.