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Finding the Fourth Proportional to 327,012.88, 451,401.09 and 191,091.01

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Solution

The fourth proportional to 327,012.88, 451,401.09 and 191,091.01 is: 263,777.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,012.88 : 451,401.09 = 191,091.01 : x
  2. Step 2: Convert to fraction form
    327,012.88/451,401.09 = 191,091.01/x
  3. Step 3: Cross multiply
    327,012.88x = 451,401.09 × 191,091.01
  4. Step 4: Simplify right side
    327,012.88x = 86,258,690,203.20
  5. Step 5: Solve for x
    x = 86,258,690,203.20/327,012.88
  6. Step 6: Final answer
    x = 263,777.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.