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Finding the Fourth Proportional to 322,991.80, 445,724.34 and 179,751.81

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Solution

The fourth proportional to 322,991.80, 445,724.34 and 179,751.81 is: 248,055.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,991.80 : 445,724.34 = 179,751.81 : x
  2. Step 2: Convert to fraction form
    322,991.80/445,724.34 = 179,751.81/x
  3. Step 3: Cross multiply
    322,991.80x = 445,724.34 × 179,751.81
  4. Step 4: Simplify right side
    322,991.80x = 80,119,756,882.91
  5. Step 5: Solve for x
    x = 80,119,756,882.91/322,991.80
  6. Step 6: Final answer
    x = 248,055.08

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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.