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Finding the Fourth Proportional to 324,631.61, 447,993.87 and 181,397.69

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Solution

The fourth proportional to 324,631.61, 447,993.87 and 181,397.69 is: 250,330.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,631.61 : 447,993.87 = 181,397.69 : x
  2. Step 2: Convert to fraction form
    324,631.61/447,993.87 = 181,397.69/x
  3. Step 3: Cross multiply
    324,631.61x = 447,993.87 × 181,397.69
  4. Step 4: Simplify right side
    324,631.61x = 81,265,052,932.29
  5. Step 5: Solve for x
    x = 81,265,052,932.29/324,631.61
  6. Step 6: Final answer
    x = 250,330.07

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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.