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Finding the Fourth Proportional to 263,851.44, 395,738.96 and 86,365.52

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Solution

The fourth proportional to 263,851.44, 395,738.96 and 86,365.52 is: 129,535.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,851.44 : 395,738.96 = 86,365.52 : x
  2. Step 2: Convert to fraction form
    263,851.44/395,738.96 = 86,365.52/x
  3. Step 3: Cross multiply
    263,851.44x = 395,738.96 × 86,365.52
  4. Step 4: Simplify right side
    263,851.44x = 34,178,201,064.66
  5. Step 5: Solve for x
    x = 34,178,201,064.66/263,851.44
  6. Step 6: Final answer
    x = 129,535.78

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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.