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Finding the Third Proportional to 55,553 and 122,224

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Solution

The third proportional to 55,553 and 122,224 is: 268,909.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,553 : 122,224 = 122,224 : x
  2. Step 2: Convert to fraction form
    55,553/122,224 = 122,224/x
  3. Step 3: Cross multiply
    55,553x = 122,224 × 122,224
  4. Step 4: Simplify right side
    55,553x = 14,938,706,176
  5. Step 5: Solve for x
    x = 14,938,706,176/55,553
  6. Step 6: Final answer
    x = 268,909.08

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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.