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Finding the Fourth Proportional to 332,873.78, 499,299.73 and 133,140.56

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Solution

The fourth proportional to 332,873.78, 499,299.73 and 133,140.56 is: 199,706.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,873.78 : 499,299.73 = 133,140.56 : x
  2. Step 2: Convert to fraction form
    332,873.78/499,299.73 = 133,140.56/x
  3. Step 3: Cross multiply
    332,873.78x = 499,299.73 × 133,140.56
  4. Step 4: Simplify right side
    332,873.78x = 66,477,042,830.70
  5. Step 5: Solve for x
    x = 66,477,042,830.70/332,873.78
  6. Step 6: Final answer
    x = 199,706.46

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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.