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Finding the Fourth Proportional to 191.48, 264.16 and 116.73

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Solution

The fourth proportional to 191.48, 264.16 and 116.73 is: 161.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    191.48 : 264.16 = 116.73 : x
  2. Step 2: Convert to fraction form
    191.48/264.16 = 116.73/x
  3. Step 3: Cross multiply
    191.48x = 264.16 × 116.73
  4. Step 4: Simplify right side
    191.48x = 30,836.37
  5. Step 5: Solve for x
    x = 30,836.37/191.48
  6. Step 6: Final answer
    x = 161.04

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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.