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Finding the Fourth Proportional to 80,591.83, 120,296.22 and 74,654.13

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Solution

The fourth proportional to 80,591.83, 120,296.22 and 74,654.13 is: 111,433.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,591.83 : 120,296.22 = 74,654.13 : x
  2. Step 2: Convert to fraction form
    80,591.83/120,296.22 = 74,654.13/x
  3. Step 3: Cross multiply
    80,591.83x = 120,296.22 × 74,654.13
  4. Step 4: Simplify right side
    80,591.83x = 8,980,609,646.39
  5. Step 5: Solve for x
    x = 8,980,609,646.39/80,591.83
  6. Step 6: Final answer
    x = 111,433.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.