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Finding the Fourth Proportional to 322,533.86, 445,077.21 and 179,288.90

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Solution

The fourth proportional to 322,533.86, 445,077.21 and 179,288.90 is: 247,407.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,533.86 : 445,077.21 = 179,288.90 : x
  2. Step 2: Convert to fraction form
    322,533.86/445,077.21 = 179,288.90/x
  3. Step 3: Cross multiply
    322,533.86x = 445,077.21 × 179,288.90
  4. Step 4: Simplify right side
    322,533.86x = 79,797,403,395.97
  5. Step 5: Solve for x
    x = 79,797,403,395.97/322,533.86
  6. Step 6: Final answer
    x = 247,407.83

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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.