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Finding the Third Proportional to 124,861.50 and 161,716.50

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Solution

The third proportional to 124,861.50 and 161,716.50 is: 209,449.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,861.50 : 161,716.50 = 161,716.50 : x
  2. Step 2: Convert to fraction form
    124,861.50/161,716.50 = 161,716.50/x
  3. Step 3: Cross multiply
    124,861.50x = 161,716.50 × 161,716.50
  4. Step 4: Simplify right side
    124,861.50x = 26,152,226,372.25
  5. Step 5: Solve for x
    x = 26,152,226,372.25/124,861.50
  6. Step 6: Final answer
    x = 209,449.88

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Why These Related Problems?

These problems maintain the same ratio (1.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.