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Finding the Third Proportional to 199,621.50 and 299,433

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Solution

The third proportional to 199,621.50 and 299,433 is: 449,150.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,621.50 : 299,433 = 299,433 : x
  2. Step 2: Convert to fraction form
    199,621.50/299,433 = 299,433/x
  3. Step 3: Cross multiply
    199,621.50x = 299,433 × 299,433
  4. Step 4: Simplify right side
    199,621.50x = 89,660,121,489
  5. Step 5: Solve for x
    x = 89,660,121,489/199,621.50
  6. Step 6: Final answer
    x = 449,150.63

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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.