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Finding the Fourth Proportional to 64,405.92, 96,609.20 and 29,321.04

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Solution

The fourth proportional to 64,405.92, 96,609.20 and 29,321.04 is: 43,981.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,405.92 : 96,609.20 = 29,321.04 : x
  2. Step 2: Convert to fraction form
    64,405.92/96,609.20 = 29,321.04/x
  3. Step 3: Cross multiply
    64,405.92x = 96,609.20 × 29,321.04
  4. Step 4: Simplify right side
    64,405.92x = 2,832,682,217.57
  5. Step 5: Solve for x
    x = 2,832,682,217.57/64,405.92
  6. Step 6: Final answer
    x = 43,981.71

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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.