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Finding the Fourth Proportional to 108,063.92, 162,109.92 and 40,617.92

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Solution

The fourth proportional to 108,063.92, 162,109.92 and 40,617.92 is: 60,932.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,063.92 : 162,109.92 = 40,617.92 : x
  2. Step 2: Convert to fraction form
    108,063.92/162,109.92 = 40,617.92/x
  3. Step 3: Cross multiply
    108,063.92x = 162,109.92 × 40,617.92
  4. Step 4: Simplify right side
    108,063.92x = 6,584,567,761.77
  5. Step 5: Solve for x
    x = 6,584,567,761.77/108,063.92
  6. Step 6: Final answer
    x = 60,932.16

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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.