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Finding the Fourth Proportional to 260,372.44, 390,555.78 and 63,380.44

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Solution

The fourth proportional to 260,372.44, 390,555.78 and 63,380.44 is: 95,069.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,372.44 : 390,555.78 = 63,380.44 : x
  2. Step 2: Convert to fraction form
    260,372.44/390,555.78 = 63,380.44/x
  3. Step 3: Cross multiply
    260,372.44x = 390,555.78 × 63,380.44
  4. Step 4: Simplify right side
    260,372.44x = 24,753,597,180.94
  5. Step 5: Solve for x
    x = 24,753,597,180.94/260,372.44
  6. Step 6: Final answer
    x = 95,069.96

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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.