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Finding the Third Proportional to 98,190 and 155,729.25

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Solution

The third proportional to 98,190 and 155,729.25 is: 246,986.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,190 : 155,729.25 = 155,729.25 : x
  2. Step 2: Convert to fraction form
    98,190/155,729.25 = 155,729.25/x
  3. Step 3: Cross multiply
    98,190x = 155,729.25 × 155,729.25
  4. Step 4: Simplify right side
    98,190x = 24,251,599,305.56
  5. Step 5: Solve for x
    x = 24,251,599,305.56/98,190
  6. Step 6: Final answer
    x = 246,986.45

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.