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Finding the Fourth Proportional to 167.36, 230.94 and 93.66

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Solution

The fourth proportional to 167.36, 230.94 and 93.66 is: 129.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.36 : 230.94 = 93.66 : x
  2. Step 2: Convert to fraction form
    167.36/230.94 = 93.66/x
  3. Step 3: Cross multiply
    167.36x = 230.94 × 93.66
  4. Step 4: Simplify right side
    167.36x = 21,629.84
  5. Step 5: Solve for x
    x = 21,629.84/167.36
  6. Step 6: Final answer
    x = 129.24

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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.