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Finding the Fourth Proportional to 263,921.44, 395,850.96 and 74,396.04

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Solution

The fourth proportional to 263,921.44, 395,850.96 and 74,396.04 is: 111,585.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,921.44 : 395,850.96 = 74,396.04 : x
  2. Step 2: Convert to fraction form
    263,921.44/395,850.96 = 74,396.04/x
  3. Step 3: Cross multiply
    263,921.44x = 395,850.96 × 74,396.04
  4. Step 4: Simplify right side
    263,921.44x = 29,449,743,854.20
  5. Step 5: Solve for x
    x = 29,449,743,854.20/263,921.44
  6. Step 6: Final answer
    x = 111,585.27

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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.