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Finding the Fourth Proportional to 336,662.45, 504,760.39 and 126,243.89

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Solution

The fourth proportional to 336,662.45, 504,760.39 and 126,243.89 is: 189,278.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,662.45 : 504,760.39 = 126,243.89 : x
  2. Step 2: Convert to fraction form
    336,662.45/504,760.39 = 126,243.89/x
  3. Step 3: Cross multiply
    336,662.45x = 504,760.39 × 126,243.89
  4. Step 4: Simplify right side
    336,662.45x = 63,722,915,151.52
  5. Step 5: Solve for x
    x = 63,722,915,151.52/336,662.45
  6. Step 6: Final answer
    x = 189,278.36

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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.