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Finding the Third Proportional to 103,554.50 and 221,857

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Solution

The third proportional to 103,554.50 and 221,857 is: 475,310.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,554.50 : 221,857 = 221,857 : x
  2. Step 2: Convert to fraction form
    103,554.50/221,857 = 221,857/x
  3. Step 3: Cross multiply
    103,554.50x = 221,857 × 221,857
  4. Step 4: Simplify right side
    103,554.50x = 49,220,528,449
  5. Step 5: Solve for x
    x = 49,220,528,449/103,554.50
  6. Step 6: Final answer
    x = 475,310.38

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.