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Finding the Fourth Proportional to 433,388.73, 649,833.11 and 133,789.17

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Solution

The fourth proportional to 433,388.73, 649,833.11 and 133,789.17 is: 200,606.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    433,388.73 : 649,833.11 = 133,789.17 : x
  2. Step 2: Convert to fraction form
    433,388.73/649,833.11 = 133,789.17/x
  3. Step 3: Cross multiply
    433,388.73x = 649,833.11 × 133,789.17
  4. Step 4: Simplify right side
    433,388.73x = 86,940,632,425.42
  5. Step 5: Solve for x
    x = 86,940,632,425.42/433,388.73
  6. Step 6: Final answer
    x = 200,606.58

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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.