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Finding the Fourth Proportional to 108,157.67, 162,121.62 and 63,805.31

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Solution

The fourth proportional to 108,157.67, 162,121.62 and 63,805.31 is: 95,640.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,157.67 : 162,121.62 = 63,805.31 : x
  2. Step 2: Convert to fraction form
    108,157.67/162,121.62 = 63,805.31/x
  3. Step 3: Cross multiply
    108,157.67x = 162,121.62 × 63,805.31
  4. Step 4: Simplify right side
    108,157.67x = 10,344,220,221.80
  5. Step 5: Solve for x
    x = 10,344,220,221.80/108,157.67
  6. Step 6: Final answer
    x = 95,640.19

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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.