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Finding the Third Proportional to 113.63 and 163.13

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Solution

The third proportional to 113.63 and 163.13 is: 234.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    113.63 : 163.13 = 163.13 : x
  2. Step 2: Convert to fraction form
    113.63/163.13 = 163.13/x
  3. Step 3: Cross multiply
    113.63x = 163.13 × 163.13
  4. Step 4: Simplify right side
    113.63x = 26,609.77
  5. Step 5: Solve for x
    x = 26,609.77/113.63
  6. Step 6: Final answer
    x = 234.19

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.