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Finding the Third Proportional to 196,600.50 and 421,875

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Solution

The third proportional to 196,600.50 and 421,875 is: 905,280.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,600.50 : 421,875 = 421,875 : x
  2. Step 2: Convert to fraction form
    196,600.50/421,875 = 421,875/x
  3. Step 3: Cross multiply
    196,600.50x = 421,875 × 421,875
  4. Step 4: Simplify right side
    196,600.50x = 177,978,515,625
  5. Step 5: Solve for x
    x = 177,978,515,625/196,600.50
  6. Step 6: Final answer
    x = 905,280.08

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These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.