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Finding the Fourth Proportional to 116.81, 174.04 and 112.44

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Solution

The fourth proportional to 116.81, 174.04 and 112.44 is: 167.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    116.81 : 174.04 = 112.44 : x
  2. Step 2: Convert to fraction form
    116.81/174.04 = 112.44/x
  3. Step 3: Cross multiply
    116.81x = 174.04 × 112.44
  4. Step 4: Simplify right side
    116.81x = 19,569.06
  5. Step 5: Solve for x
    x = 19,569.06/116.81
  6. Step 6: Final answer
    x = 167.53

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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.