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Finding the Fourth Proportional to 116.34, 174.36 and 106.92

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Solution

The fourth proportional to 116.34, 174.36 and 106.92 is: 160.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    116.34 : 174.36 = 106.92 : x
  2. Step 2: Convert to fraction form
    116.34/174.36 = 106.92/x
  3. Step 3: Cross multiply
    116.34x = 174.36 × 106.92
  4. Step 4: Simplify right side
    116.34x = 18,642.57
  5. Step 5: Solve for x
    x = 18,642.57/116.34
  6. Step 6: Final answer
    x = 160.24

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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.