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Finding the Fourth Proportional to 179.26, 268.74 and 106.98

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Solution

The fourth proportional to 179.26, 268.74 and 106.98 is: 160.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    179.26 : 268.74 = 106.98 : x
  2. Step 2: Convert to fraction form
    179.26/268.74 = 106.98/x
  3. Step 3: Cross multiply
    179.26x = 268.74 × 106.98
  4. Step 4: Simplify right side
    179.26x = 28,749.81
  5. Step 5: Solve for x
    x = 28,749.81/179.26
  6. Step 6: Final answer
    x = 160.38

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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.