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Finding the Fourth Proportional to 325,997.67, 488,954.97 and 126,181.35

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Solution

The fourth proportional to 325,997.67, 488,954.97 and 126,181.35 is: 189,255.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,997.67 : 488,954.97 = 126,181.35 : x
  2. Step 2: Convert to fraction form
    325,997.67/488,954.97 = 126,181.35/x
  3. Step 3: Cross multiply
    325,997.67x = 488,954.97 × 126,181.35
  4. Step 4: Simplify right side
    325,997.67x = 61,696,998,203.81
  5. Step 5: Solve for x
    x = 61,696,998,203.81/325,997.67
  6. Step 6: Final answer
    x = 189,255.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.