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Finding the Third Proportional to 101,738 and 220,989.50

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Solution

The third proportional to 101,738 and 220,989.50 is: 480,020.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,738 : 220,989.50 = 220,989.50 : x
  2. Step 2: Convert to fraction form
    101,738/220,989.50 = 220,989.50/x
  3. Step 3: Cross multiply
    101,738x = 220,989.50 × 220,989.50
  4. Step 4: Simplify right side
    101,738x = 48,836,359,110.25
  5. Step 5: Solve for x
    x = 48,836,359,110.25/101,738
  6. Step 6: Final answer
    x = 480,020.83

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.