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Finding the Third Proportional to 89,363.75 and 196,438.75

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Solution

The third proportional to 89,363.75 and 196,438.75 is: 431,810.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,363.75 : 196,438.75 = 196,438.75 : x
  2. Step 2: Convert to fraction form
    89,363.75/196,438.75 = 196,438.75/x
  3. Step 3: Cross multiply
    89,363.75x = 196,438.75 × 196,438.75
  4. Step 4: Simplify right side
    89,363.75x = 38,588,182,501.56
  5. Step 5: Solve for x
    x = 38,588,182,501.56/89,363.75
  6. Step 6: Final answer
    x = 431,810.24

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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.