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Finding the Fourth Proportional to 122.67, 184.06 and 106.44

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Solution

The fourth proportional to 122.67, 184.06 and 106.44 is: 159.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    122.67 : 184.06 = 106.44 : x
  2. Step 2: Convert to fraction form
    122.67/184.06 = 106.44/x
  3. Step 3: Cross multiply
    122.67x = 184.06 × 106.44
  4. Step 4: Simplify right side
    122.67x = 19,590.43
  5. Step 5: Solve for x
    x = 19,590.43/122.67
  6. Step 6: Final answer
    x = 159.70

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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.