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Finding the Fourth Proportional to 263,896.20, 395,840.88 and 64,216.71

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Solution

The fourth proportional to 263,896.20, 395,840.88 and 64,216.71 is: 96,324.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,896.20 : 395,840.88 = 64,216.71 : x
  2. Step 2: Convert to fraction form
    263,896.20/395,840.88 = 64,216.71/x
  3. Step 3: Cross multiply
    263,896.20x = 395,840.88 × 64,216.71
  4. Step 4: Simplify right side
    263,896.20x = 25,419,598,997.10
  5. Step 5: Solve for x
    x = 25,419,598,997.10/263,896.20
  6. Step 6: Final answer
    x = 96,324.23

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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.