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Finding the Fourth Proportional to 200,163.35, 300,287.86 and 73,803.96

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Solution

The fourth proportional to 200,163.35, 300,287.86 and 73,803.96 is: 110,721.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,163.35 : 300,287.86 = 73,803.96 : x
  2. Step 2: Convert to fraction form
    200,163.35/300,287.86 = 73,803.96/x
  3. Step 3: Cross multiply
    200,163.35x = 300,287.86 × 73,803.96
  4. Step 4: Simplify right side
    200,163.35x = 22,162,433,023.42
  5. Step 5: Solve for x
    x = 22,162,433,023.42/200,163.35
  6. Step 6: Final answer
    x = 110,721.73

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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.