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Finding the Fourth Proportional to 167.16, 229.44 and 152.58

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Solution

The fourth proportional to 167.16, 229.44 and 152.58 is: 209.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.16 : 229.44 = 152.58 : x
  2. Step 2: Convert to fraction form
    167.16/229.44 = 152.58/x
  3. Step 3: Cross multiply
    167.16x = 229.44 × 152.58
  4. Step 4: Simplify right side
    167.16x = 35,007.96
  5. Step 5: Solve for x
    x = 35,007.96/167.16
  6. Step 6: Final answer
    x = 209.43

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.