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Finding the Third Proportional to 90,693.75 and 196,922.63

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Solution

The third proportional to 90,693.75 and 196,922.63 is: 427,576.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,693.75 : 196,922.63 = 196,922.63 : x
  2. Step 2: Convert to fraction form
    90,693.75/196,922.63 = 196,922.63/x
  3. Step 3: Cross multiply
    90,693.75x = 196,922.63 × 196,922.63
  4. Step 4: Simplify right side
    90,693.75x = 38,778,520,236.89
  5. Step 5: Solve for x
    x = 38,778,520,236.89/90,693.75
  6. Step 6: Final answer
    x = 427,576.54

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.