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Finding the Fourth Proportional to 116.16, 174.16 and 94.88

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Solution

The fourth proportional to 116.16, 174.16 and 94.88 is: 142.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    116.16 : 174.16 = 94.88 : x
  2. Step 2: Convert to fraction form
    116.16/174.16 = 94.88/x
  3. Step 3: Cross multiply
    116.16x = 174.16 × 94.88
  4. Step 4: Simplify right side
    116.16x = 16,524.30
  5. Step 5: Solve for x
    x = 16,524.30/116.16
  6. Step 6: Final answer
    x = 142.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.