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Finding the Third Proportional to 105,621 and 162,122

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Solution

The third proportional to 105,621 and 162,122 is: 248,847.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,621 : 162,122 = 162,122 : x
  2. Step 2: Convert to fraction form
    105,621/162,122 = 162,122/x
  3. Step 3: Cross multiply
    105,621x = 162,122 × 162,122
  4. Step 4: Simplify right side
    105,621x = 26,283,542,884
  5. Step 5: Solve for x
    x = 26,283,542,884/105,621
  6. Step 6: Final answer
    x = 248,847.70

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.