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Finding the Third Proportional to 107,392.88 and 212,074.50

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Solution

The third proportional to 107,392.88 and 212,074.50 is: 418,794.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,392.88 : 212,074.50 = 212,074.50 : x
  2. Step 2: Convert to fraction form
    107,392.88/212,074.50 = 212,074.50/x
  3. Step 3: Cross multiply
    107,392.88x = 212,074.50 × 212,074.50
  4. Step 4: Simplify right side
    107,392.88x = 44,975,593,550.25
  5. Step 5: Solve for x
    x = 44,975,593,550.25/107,392.88
  6. Step 6: Final answer
    x = 418,794.95

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Why These Related Problems?

These problems maintain the same ratio (1.97) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.