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Finding the Fourth Proportional to 260,754.39, 391,296.12 and 110,994.44

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Solution

The fourth proportional to 260,754.39, 391,296.12 and 110,994.44 is: 166,561.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,754.39 : 391,296.12 = 110,994.44 : x
  2. Step 2: Convert to fraction form
    260,754.39/391,296.12 = 110,994.44/x
  3. Step 3: Cross multiply
    260,754.39x = 391,296.12 × 110,994.44
  4. Step 4: Simplify right side
    260,754.39x = 43,431,691,340.86
  5. Step 5: Solve for x
    x = 43,431,691,340.86/260,754.39
  6. Step 6: Final answer
    x = 166,561.69

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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.