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Finding the Fourth Proportional to 184.62, 276.86 and 61.22

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Solution

The fourth proportional to 184.62, 276.86 and 61.22 is: 91.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    184.62 : 276.86 = 61.22 : x
  2. Step 2: Convert to fraction form
    184.62/276.86 = 61.22/x
  3. Step 3: Cross multiply
    184.62x = 276.86 × 61.22
  4. Step 4: Simplify right side
    184.62x = 16,947.68
  5. Step 5: Solve for x
    x = 16,947.68/184.62
  6. Step 6: Final answer
    x = 91.80

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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.