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Finding the Third Proportional to 42,117.75 and 92,619

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Solution

The third proportional to 42,117.75 and 92,619 is: 203,673.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,117.75 : 92,619 = 92,619 : x
  2. Step 2: Convert to fraction form
    42,117.75/92,619 = 92,619/x
  3. Step 3: Cross multiply
    42,117.75x = 92,619 × 92,619
  4. Step 4: Simplify right side
    42,117.75x = 8,578,279,161
  5. Step 5: Solve for x
    x = 8,578,279,161/42,117.75
  6. Step 6: Final answer
    x = 203,673.73

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.