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Finding the Third Proportional to 190,396.50 and 418,162.50

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Solution

The third proportional to 190,396.50 and 418,162.50 is: 918,398.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,396.50 : 418,162.50 = 418,162.50 : x
  2. Step 2: Convert to fraction form
    190,396.50/418,162.50 = 418,162.50/x
  3. Step 3: Cross multiply
    190,396.50x = 418,162.50 × 418,162.50
  4. Step 4: Simplify right side
    190,396.50x = 174,859,876,406.25
  5. Step 5: Solve for x
    x = 174,859,876,406.25/190,396.50
  6. Step 6: Final answer
    x = 918,398.59

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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.