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Finding the Fourth Proportional to 110,266.80, 165,400.20 and 108,517.20

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Solution

The fourth proportional to 110,266.80, 165,400.20 and 108,517.20 is: 162,775.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,266.80 : 165,400.20 = 108,517.20 : x
  2. Step 2: Convert to fraction form
    110,266.80/165,400.20 = 108,517.20/x
  3. Step 3: Cross multiply
    110,266.80x = 165,400.20 × 108,517.20
  4. Step 4: Simplify right side
    110,266.80x = 17,948,766,583.44
  5. Step 5: Solve for x
    x = 17,948,766,583.44/110,266.80
  6. Step 6: Final answer
    x = 162,775.80

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1.5x scale

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.