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Finding the Third Proportional to 120,055.50 and 261,252

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Solution

The third proportional to 120,055.50 and 261,252 is: 568,508.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,055.50 : 261,252 = 261,252 : x
  2. Step 2: Convert to fraction form
    120,055.50/261,252 = 261,252/x
  3. Step 3: Cross multiply
    120,055.50x = 261,252 × 261,252
  4. Step 4: Simplify right side
    120,055.50x = 68,252,607,504
  5. Step 5: Solve for x
    x = 68,252,607,504/120,055.50
  6. Step 6: Final answer
    x = 568,508.79

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.