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Finding the Fourth Proportional to 239,632.76, 330,803.28 and 206,796.54

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Solution

The fourth proportional to 239,632.76, 330,803.28 and 206,796.54 is: 285,474.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,632.76 : 330,803.28 = 206,796.54 : x
  2. Step 2: Convert to fraction form
    239,632.76/330,803.28 = 206,796.54/x
  3. Step 3: Cross multiply
    239,632.76x = 330,803.28 × 206,796.54
  4. Step 4: Simplify right side
    239,632.76x = 68,408,974,189.68
  5. Step 5: Solve for x
    x = 68,408,974,189.68/239,632.76
  6. Step 6: Final answer
    x = 285,474.22

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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.