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Finding the Fourth Proportional to 260,968.12, 359,793.30 and 188,310.04

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Solution

The fourth proportional to 260,968.12, 359,793.30 and 188,310.04 is: 259,620.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,968.12 : 359,793.30 = 188,310.04 : x
  2. Step 2: Convert to fraction form
    260,968.12/359,793.30 = 188,310.04/x
  3. Step 3: Cross multiply
    260,968.12x = 359,793.30 × 188,310.04
  4. Step 4: Simplify right side
    260,968.12x = 67,752,690,714.73
  5. Step 5: Solve for x
    x = 67,752,690,714.73/260,968.12
  6. Step 6: Final answer
    x = 259,620.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.