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Finding the Third Proportional to 120,224.50 and 261,347

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Solution

The third proportional to 120,224.50 and 261,347 is: 568,122.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,224.50 : 261,347 = 261,347 : x
  2. Step 2: Convert to fraction form
    120,224.50/261,347 = 261,347/x
  3. Step 3: Cross multiply
    120,224.50x = 261,347 × 261,347
  4. Step 4: Simplify right side
    120,224.50x = 68,302,254,409
  5. Step 5: Solve for x
    x = 68,302,254,409/120,224.50
  6. Step 6: Final answer
    x = 568,122.59

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.