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Finding the Fourth Proportional to 167,908.56, 251,862.55 and 115,158.12

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Solution

The fourth proportional to 167,908.56, 251,862.55 and 115,158.12 is: 172,736.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,908.56 : 251,862.55 = 115,158.12 : x
  2. Step 2: Convert to fraction form
    167,908.56/251,862.55 = 115,158.12/x
  3. Step 3: Cross multiply
    167,908.56x = 251,862.55 × 115,158.12
  4. Step 4: Simplify right side
    167,908.56x = 29,004,017,756.41
  5. Step 5: Solve for x
    x = 29,004,017,756.41/167,908.56
  6. Step 6: Final answer
    x = 172,736.98

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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.