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Finding the Fourth Proportional to 236,992.72, 327,046.24 and 129,560.28

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Solution

The fourth proportional to 236,992.72, 327,046.24 and 129,560.28 is: 178,791.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,992.72 : 327,046.24 = 129,560.28 : x
  2. Step 2: Convert to fraction form
    236,992.72/327,046.24 = 129,560.28/x
  3. Step 3: Cross multiply
    236,992.72x = 327,046.24 × 129,560.28
  4. Step 4: Simplify right side
    236,992.72x = 42,372,202,427.35
  5. Step 5: Solve for x
    x = 42,372,202,427.35/236,992.72
  6. Step 6: Final answer
    x = 178,791.16

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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.