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Finding the Third Proportional to 116,991.50 and 180,999.75

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Solution

The third proportional to 116,991.50 and 180,999.75 is: 280,028.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,991.50 : 180,999.75 = 180,999.75 : x
  2. Step 2: Convert to fraction form
    116,991.50/180,999.75 = 180,999.75/x
  3. Step 3: Cross multiply
    116,991.50x = 180,999.75 × 180,999.75
  4. Step 4: Simplify right side
    116,991.50x = 32,760,909,500.06
  5. Step 5: Solve for x
    x = 32,760,909,500.06/116,991.50
  6. Step 6: Final answer
    x = 280,028.12

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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.