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Finding the Fourth Proportional to 163.17, 244.76 and 111.94

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Solution

The fourth proportional to 163.17, 244.76 and 111.94 is: 167.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    163.17 : 244.76 = 111.94 : x
  2. Step 2: Convert to fraction form
    163.17/244.76 = 111.94/x
  3. Step 3: Cross multiply
    163.17x = 244.76 × 111.94
  4. Step 4: Simplify right side
    163.17x = 27,397.26
  5. Step 5: Solve for x
    x = 27,397.26/163.17
  6. Step 6: Final answer
    x = 167.91

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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.