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Finding the Third Proportional to 150,421 and 225,664

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Solution

The third proportional to 150,421 and 225,664 is: 338,544.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,421 : 225,664 = 225,664 : x
  2. Step 2: Convert to fraction form
    150,421/225,664 = 225,664/x
  3. Step 3: Cross multiply
    150,421x = 225,664 × 225,664
  4. Step 4: Simplify right side
    150,421x = 50,924,240,896
  5. Step 5: Solve for x
    x = 50,924,240,896/150,421
  6. Step 6: Final answer
    x = 338,544.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.