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Finding the Third Proportional to 89,839.50 and 197,907.50

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Solution

The third proportional to 89,839.50 and 197,907.50 is: 435,970.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,839.50 : 197,907.50 = 197,907.50 : x
  2. Step 2: Convert to fraction form
    89,839.50/197,907.50 = 197,907.50/x
  3. Step 3: Cross multiply
    89,839.50x = 197,907.50 × 197,907.50
  4. Step 4: Simplify right side
    89,839.50x = 39,167,378,556.25
  5. Step 5: Solve for x
    x = 39,167,378,556.25/89,839.50
  6. Step 6: Final answer
    x = 435,970.58

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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.