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Finding the Third Proportional to 203,647.50 and 447,439.50

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Solution

The third proportional to 203,647.50 and 447,439.50 is: 983,081.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,647.50 : 447,439.50 = 447,439.50 : x
  2. Step 2: Convert to fraction form
    203,647.50/447,439.50 = 447,439.50/x
  3. Step 3: Cross multiply
    203,647.50x = 447,439.50 × 447,439.50
  4. Step 4: Simplify right side
    203,647.50x = 200,202,106,160.25
  5. Step 5: Solve for x
    x = 200,202,106,160.25/203,647.50
  6. Step 6: Final answer
    x = 983,081.58

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.