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Finding the Fourth Proportional to 168.35, 252.99 and 164.25

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Solution

The fourth proportional to 168.35, 252.99 and 164.25 is: 246.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    168.35 : 252.99 = 164.25 : x
  2. Step 2: Convert to fraction form
    168.35/252.99 = 164.25/x
  3. Step 3: Cross multiply
    168.35x = 252.99 × 164.25
  4. Step 4: Simplify right side
    168.35x = 41,553.61
  5. Step 5: Solve for x
    x = 41,553.61/168.35
  6. Step 6: Final answer
    x = 246.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.