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Finding the Fourth Proportional to 262,763.78, 394,145.92 and 73,224.69

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Solution

The fourth proportional to 262,763.78, 394,145.92 and 73,224.69 is: 109,837.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,763.78 : 394,145.92 = 73,224.69 : x
  2. Step 2: Convert to fraction form
    262,763.78/394,145.92 = 73,224.69/x
  3. Step 3: Cross multiply
    262,763.78x = 394,145.92 × 73,224.69
  4. Step 4: Simplify right side
    262,763.78x = 28,861,213,011.86
  5. Step 5: Solve for x
    x = 28,861,213,011.86/262,763.78
  6. Step 6: Final answer
    x = 109,837.11

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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.