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Finding the Fourth Proportional to 168.44, 252.22 and 100.01

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Solution

The fourth proportional to 168.44, 252.22 and 100.01 is: 149.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    168.44 : 252.22 = 100.01 : x
  2. Step 2: Convert to fraction form
    168.44/252.22 = 100.01/x
  3. Step 3: Cross multiply
    168.44x = 252.22 × 100.01
  4. Step 4: Simplify right side
    168.44x = 25,223.89
  5. Step 5: Solve for x
    x = 25,223.89/168.44
  6. Step 6: Final answer
    x = 149.75

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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.