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Finding the Third Proportional to 190,518.75 and 419,910.75

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Solution

The third proportional to 190,518.75 and 419,910.75 is: 925,499.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,518.75 : 419,910.75 = 419,910.75 : x
  2. Step 2: Convert to fraction form
    190,518.75/419,910.75 = 419,910.75/x
  3. Step 3: Cross multiply
    190,518.75x = 419,910.75 × 419,910.75
  4. Step 4: Simplify right side
    190,518.75x = 176,325,037,965.56
  5. Step 5: Solve for x
    x = 176,325,037,965.56/190,518.75
  6. Step 6: Final answer
    x = 925,499.66

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.