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Finding the Fourth Proportional to 168.96, 252.98 and 107.10

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Solution

The fourth proportional to 168.96, 252.98 and 107.10 is: 160.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    168.96 : 252.98 = 107.10 : x
  2. Step 2: Convert to fraction form
    168.96/252.98 = 107.10/x
  3. Step 3: Cross multiply
    168.96x = 252.98 × 107.10
  4. Step 4: Simplify right side
    168.96x = 27,094.16
  5. Step 5: Solve for x
    x = 27,094.16/168.96
  6. Step 6: Final answer
    x = 160.36

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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.