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Finding the Fourth Proportional to 167.36, 230.88 and 118.12

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Solution

The fourth proportional to 167.36, 230.88 and 118.12 is: 162.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.36 : 230.88 = 118.12 : x
  2. Step 2: Convert to fraction form
    167.36/230.88 = 118.12/x
  3. Step 3: Cross multiply
    167.36x = 230.88 × 118.12
  4. Step 4: Simplify right side
    167.36x = 27,271.55
  5. Step 5: Solve for x
    x = 27,271.55/167.36
  6. Step 6: Final answer
    x = 162.95

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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.