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Finding the Fourth Proportional to 133.86, 184.96 and 116.24

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Solution

The fourth proportional to 133.86, 184.96 and 116.24 is: 160.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    133.86 : 184.96 = 116.24 : x
  2. Step 2: Convert to fraction form
    133.86/184.96 = 116.24/x
  3. Step 3: Cross multiply
    133.86x = 184.96 × 116.24
  4. Step 4: Simplify right side
    133.86x = 21,499.75
  5. Step 5: Solve for x
    x = 21,499.75/133.86
  6. Step 6: Final answer
    x = 160.61

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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.