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Finding the Fourth Proportional to 167,892.54, 231,803.32 and 129,061.54

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Solution

The fourth proportional to 167,892.54, 231,803.32 and 129,061.54 is: 178,190.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,892.54 : 231,803.32 = 129,061.54 : x
  2. Step 2: Convert to fraction form
    167,892.54/231,803.32 = 129,061.54/x
  3. Step 3: Cross multiply
    167,892.54x = 231,803.32 × 129,061.54
  4. Step 4: Simplify right side
    167,892.54x = 29,916,893,456.31
  5. Step 5: Solve for x
    x = 29,916,893,456.31/167,892.54
  6. Step 6: Final answer
    x = 178,190.73

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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.