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Finding the Fourth Proportional to 167,754.56, 251,787.36 and 84,706.88

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Solution

The fourth proportional to 167,754.56, 251,787.36 and 84,706.88 is: 127,138.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,754.56 : 251,787.36 = 84,706.88 : x
  2. Step 2: Convert to fraction form
    167,754.56/251,787.36 = 84,706.88/x
  3. Step 3: Cross multiply
    167,754.56x = 251,787.36 × 84,706.88
  4. Step 4: Simplify right side
    167,754.56x = 21,328,121,689.04
  5. Step 5: Solve for x
    x = 21,328,121,689.04/167,754.56
  6. Step 6: Final answer
    x = 127,138.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.