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Finding the Fourth Proportional to 116.93, 174.25 and 113.63

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Solution

The fourth proportional to 116.93, 174.25 and 113.63 is: 169.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    116.93 : 174.25 = 113.63 : x
  2. Step 2: Convert to fraction form
    116.93/174.25 = 113.63/x
  3. Step 3: Cross multiply
    116.93x = 174.25 × 113.63
  4. Step 4: Simplify right side
    116.93x = 19,800.03
  5. Step 5: Solve for x
    x = 19,800.03/116.93
  6. Step 6: Final answer
    x = 169.33

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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.