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Finding the Fourth Proportional to 178.92, 246.99 and 116.82

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Solution

The fourth proportional to 178.92, 246.99 and 116.82 is: 161.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    178.92 : 246.99 = 116.82 : x
  2. Step 2: Convert to fraction form
    178.92/246.99 = 116.82/x
  3. Step 3: Cross multiply
    178.92x = 246.99 × 116.82
  4. Step 4: Simplify right side
    178.92x = 28,853.37
  5. Step 5: Solve for x
    x = 28,853.37/178.92
  6. Step 6: Final answer
    x = 161.26

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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.