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Finding the Third Proportional to 90,463.50 and 190,836

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Solution

The third proportional to 90,463.50 and 190,836 is: 402,575.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,463.50 : 190,836 = 190,836 : x
  2. Step 2: Convert to fraction form
    90,463.50/190,836 = 190,836/x
  3. Step 3: Cross multiply
    90,463.50x = 190,836 × 190,836
  4. Step 4: Simplify right side
    90,463.50x = 36,418,378,896
  5. Step 5: Solve for x
    x = 36,418,378,896/90,463.50
  6. Step 6: Final answer
    x = 402,575.39

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.