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Finding the Fourth Proportional to 323,187.84, 445,991.40 and 179,944.92

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Solution

The fourth proportional to 323,187.84, 445,991.40 and 179,944.92 is: 248,319.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,187.84 : 445,991.40 = 179,944.92 : x
  2. Step 2: Convert to fraction form
    323,187.84/445,991.40 = 179,944.92/x
  3. Step 3: Cross multiply
    323,187.84x = 445,991.40 × 179,944.92
  4. Step 4: Simplify right side
    323,187.84x = 80,253,886,793.69
  5. Step 5: Solve for x
    x = 80,253,886,793.69/323,187.84
  6. Step 6: Final answer
    x = 248,319.64

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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.