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Finding the Fourth Proportional to 108,515.80, 162,773.70 and 29,627.20

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Solution

The fourth proportional to 108,515.80, 162,773.70 and 29,627.20 is: 44,440.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,515.80 : 162,773.70 = 29,627.20 : x
  2. Step 2: Convert to fraction form
    108,515.80/162,773.70 = 29,627.20/x
  3. Step 3: Cross multiply
    108,515.80x = 162,773.70 × 29,627.20
  4. Step 4: Simplify right side
    108,515.80x = 4,822,528,964.64
  5. Step 5: Solve for x
    x = 4,822,528,964.64/108,515.80
  6. Step 6: Final answer
    x = 44,440.80

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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.