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Finding the Third Proportional to 92,427 and 197,142

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Solution

The third proportional to 92,427 and 197,142 is: 420,493.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,427 : 197,142 = 197,142 : x
  2. Step 2: Convert to fraction form
    92,427/197,142 = 197,142/x
  3. Step 3: Cross multiply
    92,427x = 197,142 × 197,142
  4. Step 4: Simplify right side
    92,427x = 38,864,968,164
  5. Step 5: Solve for x
    x = 38,864,968,164/92,427
  6. Step 6: Final answer
    x = 420,493.67

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.