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Finding the Fourth Proportional to 167.52, 230.99 and 117.77

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Solution

The fourth proportional to 167.52, 230.99 and 117.77 is: 162.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.52 : 230.99 = 117.77 : x
  2. Step 2: Convert to fraction form
    167.52/230.99 = 117.77/x
  3. Step 3: Cross multiply
    167.52x = 230.99 × 117.77
  4. Step 4: Simplify right side
    167.52x = 27,201.95
  5. Step 5: Solve for x
    x = 27,201.95/167.52
  6. Step 6: Final answer
    x = 162.38

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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.