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Finding the Fourth Proportional to 116.51, 174.49 and 113.06

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Solution

The fourth proportional to 116.51, 174.49 and 113.06 is: 169.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    116.51 : 174.49 = 113.06 : x
  2. Step 2: Convert to fraction form
    116.51/174.49 = 113.06/x
  3. Step 3: Cross multiply
    116.51x = 174.49 × 113.06
  4. Step 4: Simplify right side
    116.51x = 19,727.99
  5. Step 5: Solve for x
    x = 19,727.99/116.51
  6. Step 6: Final answer
    x = 169.33

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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.