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Finding the Fourth Proportional to 167.22, 230.58 and 118.02

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Solution

The fourth proportional to 167.22, 230.58 and 118.02 is: 162.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.22 : 230.58 = 118.02 : x
  2. Step 2: Convert to fraction form
    167.22/230.58 = 118.02/x
  3. Step 3: Cross multiply
    167.22x = 230.58 × 118.02
  4. Step 4: Simplify right side
    167.22x = 27,213.05
  5. Step 5: Solve for x
    x = 27,213.05/167.22
  6. Step 6: Final answer
    x = 162.74

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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.