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Finding the Fourth Proportional to 167.16, 230.74 and 118.08

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Solution

The fourth proportional to 167.16, 230.74 and 118.08 is: 162.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.16 : 230.74 = 118.08 : x
  2. Step 2: Convert to fraction form
    167.16/230.74 = 118.08/x
  3. Step 3: Cross multiply
    167.16x = 230.74 × 118.08
  4. Step 4: Simplify right side
    167.16x = 27,245.78
  5. Step 5: Solve for x
    x = 27,245.78/167.16
  6. Step 6: Final answer
    x = 162.99

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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.