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Finding the Fourth Proportional to 186.92, 258.01 and 116.94

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Solution

The fourth proportional to 186.92, 258.01 and 116.94 is: 161.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    186.92 : 258.01 = 116.94 : x
  2. Step 2: Convert to fraction form
    186.92/258.01 = 116.94/x
  3. Step 3: Cross multiply
    186.92x = 258.01 × 116.94
  4. Step 4: Simplify right side
    186.92x = 30,170.91
  5. Step 5: Solve for x
    x = 30,170.91/186.92
  6. Step 6: Final answer
    x = 161.41

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Why These Related Problems?

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