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Finding the Fourth Proportional to 124.59, 186 and 110.92

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Solution

The fourth proportional to 124.59, 186 and 110.92 is: 165.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    124.59 : 186 = 110.92 : x
  2. Step 2: Convert to fraction form
    124.59/186 = 110.92/x
  3. Step 3: Cross multiply
    124.59x = 186 × 110.92
  4. Step 4: Simplify right side
    124.59x = 20,631.12
  5. Step 5: Solve for x
    x = 20,631.12/124.59
  6. Step 6: Final answer
    x = 165.59

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.