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Finding the Fourth Proportional to 108,517.80, 162,776.70 and 29,629.20

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Solution

The fourth proportional to 108,517.80, 162,776.70 and 29,629.20 is: 44,443.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,517.80 : 162,776.70 = 29,629.20 : x
  2. Step 2: Convert to fraction form
    108,517.80/162,776.70 = 29,629.20/x
  3. Step 3: Cross multiply
    108,517.80x = 162,776.70 × 29,629.20
  4. Step 4: Simplify right side
    108,517.80x = 4,822,943,399.64
  5. Step 5: Solve for x
    x = 4,822,943,399.64/108,517.80
  6. Step 6: Final answer
    x = 44,443.80

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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.