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Finding the Fourth Proportional to 167, 230.48 and 115.36

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Solution

The fourth proportional to 167, 230.48 and 115.36 is: 159.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    167 : 230.48 = 115.36 : x
  2. Step 2: Convert to fraction form
    167/230.48 = 115.36/x
  3. Step 3: Cross multiply
    167x = 230.48 × 115.36
  4. Step 4: Simplify right side
    167x = 26,588.17
  5. Step 5: Solve for x
    x = 26,588.17/167
  6. Step 6: Final answer
    x = 159.21

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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.