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Finding the Third Proportional to 40,168 and 87,740

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Solution

The third proportional to 40,168 and 87,740 is: 191,652.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,168 : 87,740 = 87,740 : x
  2. Step 2: Convert to fraction form
    40,168/87,740 = 87,740/x
  3. Step 3: Cross multiply
    40,168x = 87,740 × 87,740
  4. Step 4: Simplify right side
    40,168x = 7,698,307,600
  5. Step 5: Solve for x
    x = 7,698,307,600/40,168
  6. Step 6: Final answer
    x = 191,652.75

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.