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Finding the Fourth Proportional to 124.43, 186.62 and 33.10

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Solution

The fourth proportional to 124.43, 186.62 and 33.10 is: 49.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    124.43 : 186.62 = 33.10 : x
  2. Step 2: Convert to fraction form
    124.43/186.62 = 33.10/x
  3. Step 3: Cross multiply
    124.43x = 186.62 × 33.10
  4. Step 4: Simplify right side
    124.43x = 6,177.91
  5. Step 5: Solve for x
    x = 6,177.91/124.43
  6. Step 6: Final answer
    x = 49.65

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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.