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Finding the Fourth Proportional to 116.16, 173.45 and 114.94

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Solution

The fourth proportional to 116.16, 173.45 and 114.94 is: 171.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    116.16 : 173.45 = 114.94 : x
  2. Step 2: Convert to fraction form
    116.16/173.45 = 114.94/x
  3. Step 3: Cross multiply
    116.16x = 173.45 × 114.94
  4. Step 4: Simplify right side
    116.16x = 19,936.85
  5. Step 5: Solve for x
    x = 19,936.85/116.16
  6. Step 6: Final answer
    x = 171.64

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.