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Finding the Fourth Proportional to 167,760, 231,510.42 and 92,310.12

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Solution

The fourth proportional to 167,760, 231,510.42 and 92,310.12 is: 127,388.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,760 : 231,510.42 = 92,310.12 : x
  2. Step 2: Convert to fraction form
    167,760/231,510.42 = 92,310.12/x
  3. Step 3: Cross multiply
    167,760x = 231,510.42 × 92,310.12
  4. Step 4: Simplify right side
    167,760x = 21,370,754,651.45
  5. Step 5: Solve for x
    x = 21,370,754,651.45/167,760
  6. Step 6: Final answer
    x = 127,388.86

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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.