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Finding the Fourth Proportional to 184.85, 255.12 and 106.15

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Solution

The fourth proportional to 184.85, 255.12 and 106.15 is: 146.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    184.85 : 255.12 = 106.15 : x
  2. Step 2: Convert to fraction form
    184.85/255.12 = 106.15/x
  3. Step 3: Cross multiply
    184.85x = 255.12 × 106.15
  4. Step 4: Simplify right side
    184.85x = 27,081.44
  5. Step 5: Solve for x
    x = 27,081.44/184.85
  6. Step 6: Final answer
    x = 146.50

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.