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Finding the Fourth Proportional to 168.94, 233.18 and 116.49

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Solution

The fourth proportional to 168.94, 233.18 and 116.49 is: 160.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    168.94 : 233.18 = 116.49 : x
  2. Step 2: Convert to fraction form
    168.94/233.18 = 116.49/x
  3. Step 3: Cross multiply
    168.94x = 233.18 × 116.49
  4. Step 4: Simplify right side
    168.94x = 27,163.14
  5. Step 5: Solve for x
    x = 27,163.14/168.94
  6. Step 6: Final answer
    x = 160.79

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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.