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Finding the Third Proportional to 103,620 and 221,944

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Solution

The third proportional to 103,620 and 221,944 is: 475,382.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,620 : 221,944 = 221,944 : x
  2. Step 2: Convert to fraction form
    103,620/221,944 = 221,944/x
  3. Step 3: Cross multiply
    103,620x = 221,944 × 221,944
  4. Step 4: Simplify right side
    103,620x = 49,259,139,136
  5. Step 5: Solve for x
    x = 49,259,139,136/103,620
  6. Step 6: Final answer
    x = 475,382.54

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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.