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Finding the Fourth Proportional to 80,053.76, 120,080.48 and 75,182.22

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Solution

The fourth proportional to 80,053.76, 120,080.48 and 75,182.22 is: 112,773.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,053.76 : 120,080.48 = 75,182.22 : x
  2. Step 2: Convert to fraction form
    80,053.76/120,080.48 = 75,182.22/x
  3. Step 3: Cross multiply
    80,053.76x = 120,080.48 × 75,182.22
  4. Step 4: Simplify right side
    80,053.76x = 9,027,917,253.02
  5. Step 5: Solve for x
    x = 9,027,917,253.02/80,053.76
  6. Step 6: Final answer
    x = 112,773.18

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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.