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Finding the Fourth Proportional to 124, 185.92 and 41.68

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Solution

The fourth proportional to 124, 185.92 and 41.68 is: 62.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    124 : 185.92 = 41.68 : x
  2. Step 2: Convert to fraction form
    124/185.92 = 41.68/x
  3. Step 3: Cross multiply
    124x = 185.92 × 41.68
  4. Step 4: Simplify right side
    124x = 7,749.15
  5. Step 5: Solve for x
    x = 7,749.15/124
  6. Step 6: Final answer
    x = 62.49

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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.