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Finding the Fourth Proportional to 263,912.80, 395,863.66 and 64,234.30

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Solution

The fourth proportional to 263,912.80, 395,863.66 and 64,234.30 is: 96,350.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,912.80 : 395,863.66 = 64,234.30 : x
  2. Step 2: Convert to fraction form
    263,912.80/395,863.66 = 64,234.30/x
  3. Step 3: Cross multiply
    263,912.80x = 395,863.66 × 64,234.30
  4. Step 4: Simplify right side
    263,912.80x = 25,428,025,095.54
  5. Step 5: Solve for x
    x = 25,428,025,095.54/263,912.80
  6. Step 6: Final answer
    x = 96,350.10

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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.