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Finding the Fourth Proportional to 263,711.73, 395,578.50 and 76,723.23

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Solution

The fourth proportional to 263,711.73, 395,578.50 and 76,723.23 is: 115,088.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,711.73 : 395,578.50 = 76,723.23 : x
  2. Step 2: Convert to fraction form
    263,711.73/395,578.50 = 76,723.23/x
  3. Step 3: Cross multiply
    263,711.73x = 395,578.50 × 76,723.23
  4. Step 4: Simplify right side
    263,711.73x = 30,350,060,238.56
  5. Step 5: Solve for x
    x = 30,350,060,238.56/263,711.73
  6. Step 6: Final answer
    x = 115,088.02

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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.