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Finding the Fourth Proportional to 394,358.99, 591,638.27 and 110,049.51

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Solution

The fourth proportional to 394,358.99, 591,638.27 and 110,049.51 is: 165,102.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,358.99 : 591,638.27 = 110,049.51 : x
  2. Step 2: Convert to fraction form
    394,358.99/591,638.27 = 110,049.51/x
  3. Step 3: Cross multiply
    394,358.99x = 591,638.27 × 110,049.51
  4. Step 4: Simplify right side
    394,358.99x = 65,109,498,202.31
  5. Step 5: Solve for x
    x = 65,109,498,202.31/394,358.99
  6. Step 6: Final answer
    x = 165,102.10

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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.