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Finding the Third Proportional to 101,328 and 161,724

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Solution

The third proportional to 101,328 and 161,724 is: 258,118.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,328 : 161,724 = 161,724 : x
  2. Step 2: Convert to fraction form
    101,328/161,724 = 161,724/x
  3. Step 3: Cross multiply
    101,328x = 161,724 × 161,724
  4. Step 4: Simplify right side
    101,328x = 26,154,652,176
  5. Step 5: Solve for x
    x = 26,154,652,176/101,328
  6. Step 6: Final answer
    x = 258,118.71

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.