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Finding the Fourth Proportional to 260,678.44, 391,046.82 and 73,704.52

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Solution

The fourth proportional to 260,678.44, 391,046.82 and 73,704.52 is: 110,565.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,678.44 : 391,046.82 = 73,704.52 : x
  2. Step 2: Convert to fraction form
    260,678.44/391,046.82 = 73,704.52/x
  3. Step 3: Cross multiply
    260,678.44x = 391,046.82 × 73,704.52
  4. Step 4: Simplify right side
    260,678.44x = 28,821,918,165.63
  5. Step 5: Solve for x
    x = 28,821,918,165.63/260,678.44
  6. Step 6: Final answer
    x = 110,565.02

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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.