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Finding the Third Proportional to 198,601.50 and 425,631

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Solution

The third proportional to 198,601.50 and 425,631 is: 912,187.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,601.50 : 425,631 = 425,631 : x
  2. Step 2: Convert to fraction form
    198,601.50/425,631 = 425,631/x
  3. Step 3: Cross multiply
    198,601.50x = 425,631 × 425,631
  4. Step 4: Simplify right side
    198,601.50x = 181,161,748,161
  5. Step 5: Solve for x
    x = 181,161,748,161/198,601.50
  6. Step 6: Final answer
    x = 912,187.21

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.