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Finding the Fourth Proportional to 110,298.60, 165,531.36 and 80,793.12

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Solution

The fourth proportional to 110,298.60, 165,531.36 and 80,793.12 is: 121,250.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,298.60 : 165,531.36 = 80,793.12 : x
  2. Step 2: Convert to fraction form
    110,298.60/165,531.36 = 80,793.12/x
  3. Step 3: Cross multiply
    110,298.60x = 165,531.36 × 80,793.12
  4. Step 4: Simplify right side
    110,298.60x = 13,373,795,032.24
  5. Step 5: Solve for x
    x = 13,373,795,032.24/110,298.60
  6. Step 6: Final answer
    x = 121,250.81

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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.