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Finding the Fourth Proportional to 322,651.05, 484,189.79 and 151,921.61

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Solution

The fourth proportional to 322,651.05, 484,189.79 and 151,921.61 is: 227,982.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,651.05 : 484,189.79 = 151,921.61 : x
  2. Step 2: Convert to fraction form
    322,651.05/484,189.79 = 151,921.61/x
  3. Step 3: Cross multiply
    322,651.05x = 484,189.79 × 151,921.61
  4. Step 4: Simplify right side
    322,651.05x = 73,558,889,261.80
  5. Step 5: Solve for x
    x = 73,558,889,261.80/322,651.05
  6. Step 6: Final answer
    x = 227,982.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.