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Finding the Third Proportional to 104,290 and 161,559

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Solution

The third proportional to 104,290 and 161,559 is: 250,276.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,290 : 161,559 = 161,559 : x
  2. Step 2: Convert to fraction form
    104,290/161,559 = 161,559/x
  3. Step 3: Cross multiply
    104,290x = 161,559 × 161,559
  4. Step 4: Simplify right side
    104,290x = 26,101,310,481
  5. Step 5: Solve for x
    x = 26,101,310,481/104,290
  6. Step 6: Final answer
    x = 250,276.25

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.