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Finding the Fourth Proportional to 179.98, 269.94 and 106.69

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Solution

The fourth proportional to 179.98, 269.94 and 106.69 is: 160.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    179.98 : 269.94 = 106.69 : x
  2. Step 2: Convert to fraction form
    179.98/269.94 = 106.69/x
  3. Step 3: Cross multiply
    179.98x = 269.94 × 106.69
  4. Step 4: Simplify right side
    179.98x = 28,799.90
  5. Step 5: Solve for x
    x = 28,799.90/179.98
  6. Step 6: Final answer
    x = 160.02

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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.