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Finding the Fourth Proportional to 167.22, 230.45 and 118.08

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Solution

The fourth proportional to 167.22, 230.45 and 118.08 is: 162.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.22 : 230.45 = 118.08 : x
  2. Step 2: Convert to fraction form
    167.22/230.45 = 118.08/x
  3. Step 3: Cross multiply
    167.22x = 230.45 × 118.08
  4. Step 4: Simplify right side
    167.22x = 27,210.95
  5. Step 5: Solve for x
    x = 27,210.95/167.22
  6. Step 6: Final answer
    x = 162.73

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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.