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Finding the Fourth Proportional to 163.17, 224.91 and 116.46

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Solution

The fourth proportional to 163.17, 224.91 and 116.46 is: 160.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    163.17 : 224.91 = 116.46 : x
  2. Step 2: Convert to fraction form
    163.17/224.91 = 116.46/x
  3. Step 3: Cross multiply
    163.17x = 224.91 × 116.46
  4. Step 4: Simplify right side
    163.17x = 26,193.02
  5. Step 5: Solve for x
    x = 26,193.02/163.17
  6. Step 6: Final answer
    x = 160.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.