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Finding the Third Proportional to 98,986.50 and 220,054.50

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Solution

The third proportional to 98,986.50 and 220,054.50 is: 489,197.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,986.50 : 220,054.50 = 220,054.50 : x
  2. Step 2: Convert to fraction form
    98,986.50/220,054.50 = 220,054.50/x
  3. Step 3: Cross multiply
    98,986.50x = 220,054.50 × 220,054.50
  4. Step 4: Simplify right side
    98,986.50x = 48,423,982,970.25
  5. Step 5: Solve for x
    x = 48,423,982,970.25/98,986.50
  6. Step 6: Final answer
    x = 489,197.85

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.