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Finding the Third Proportional to 211,138.50 and 327,206.25

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Solution

The third proportional to 211,138.50 and 327,206.25 is: 507,079.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,138.50 : 327,206.25 = 327,206.25 : x
  2. Step 2: Convert to fraction form
    211,138.50/327,206.25 = 327,206.25/x
  3. Step 3: Cross multiply
    211,138.50x = 327,206.25 × 327,206.25
  4. Step 4: Simplify right side
    211,138.50x = 107,063,930,039.06
  5. Step 5: Solve for x
    x = 107,063,930,039.06/211,138.50
  6. Step 6: Final answer
    x = 507,079.14

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.