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Finding the Fourth Proportional to 269,761.57, 372,298.28 and 231,647.29

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Solution

The fourth proportional to 269,761.57, 372,298.28 and 231,647.29 is: 319,696.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,761.57 : 372,298.28 = 231,647.29 : x
  2. Step 2: Convert to fraction form
    269,761.57/372,298.28 = 231,647.29/x
  3. Step 3: Cross multiply
    269,761.57x = 372,298.28 × 231,647.29
  4. Step 4: Simplify right side
    269,761.57x = 86,241,886,015.85
  5. Step 5: Solve for x
    x = 86,241,886,015.85/269,761.57
  6. Step 6: Final answer
    x = 319,696.71

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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.