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Finding the Third Proportional to 197,200.50 and 431,718

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Solution

The third proportional to 197,200.50 and 431,718 is: 945,131.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,200.50 : 431,718 = 431,718 : x
  2. Step 2: Convert to fraction form
    197,200.50/431,718 = 431,718/x
  3. Step 3: Cross multiply
    197,200.50x = 431,718 × 431,718
  4. Step 4: Simplify right side
    197,200.50x = 186,380,431,524
  5. Step 5: Solve for x
    x = 186,380,431,524/197,200.50
  6. Step 6: Final answer
    x = 945,131.64

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.