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Finding the Fourth Proportional to 227,458.50, 313,791.30 and 131,909.82

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Solution

The fourth proportional to 227,458.50, 313,791.30 and 131,909.82 is: 181,976.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,458.50 : 313,791.30 = 131,909.82 : x
  2. Step 2: Convert to fraction form
    227,458.50/313,791.30 = 131,909.82/x
  3. Step 3: Cross multiply
    227,458.50x = 313,791.30 × 131,909.82
  4. Step 4: Simplify right side
    227,458.50x = 41,392,153,900.57
  5. Step 5: Solve for x
    x = 41,392,153,900.57/227,458.50
  6. Step 6: Final answer
    x = 181,976.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.