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Finding the Third Proportional to 109.48 and 164.53

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Solution

The third proportional to 109.48 and 164.53 is: 247.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    109.48 : 164.53 = 164.53 : x
  2. Step 2: Convert to fraction form
    109.48/164.53 = 164.53/x
  3. Step 3: Cross multiply
    109.48x = 164.53 × 164.53
  4. Step 4: Simplify right side
    109.48x = 27,070.53
  5. Step 5: Solve for x
    x = 27,070.53/109.48
  6. Step 6: Final answer
    x = 247.27

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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.