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Finding the Fourth Proportional to 108,301.92, 162,452.88 and 71,357.28

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Solution

The fourth proportional to 108,301.92, 162,452.88 and 71,357.28 is: 107,035.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,301.92 : 162,452.88 = 71,357.28 : x
  2. Step 2: Convert to fraction form
    108,301.92/162,452.88 = 71,357.28/x
  3. Step 3: Cross multiply
    108,301.92x = 162,452.88 × 71,357.28
  4. Step 4: Simplify right side
    108,301.92x = 11,592,195,644.97
  5. Step 5: Solve for x
    x = 11,592,195,644.97/108,301.92
  6. Step 6: Final answer
    x = 107,035.92

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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.