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Finding the Third Proportional to 98,909 and 187,855

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Solution

The third proportional to 98,909 and 187,855 is: 356,787.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,909 : 187,855 = 187,855 : x
  2. Step 2: Convert to fraction form
    98,909/187,855 = 187,855/x
  3. Step 3: Cross multiply
    98,909x = 187,855 × 187,855
  4. Step 4: Simplify right side
    98,909x = 35,289,501,025
  5. Step 5: Solve for x
    x = 35,289,501,025/98,909
  6. Step 6: Final answer
    x = 356,787.56

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Why These Related Problems?

These problems maintain the same ratio (1.90) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.