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Finding the Fourth Proportional to 332,698.20, 499,047.30 and 133,049.40

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Solution

The fourth proportional to 332,698.20, 499,047.30 and 133,049.40 is: 199,574.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,698.20 : 499,047.30 = 133,049.40 : x
  2. Step 2: Convert to fraction form
    332,698.20/499,047.30 = 133,049.40/x
  3. Step 3: Cross multiply
    332,698.20x = 499,047.30 × 133,049.40
  4. Step 4: Simplify right side
    332,698.20x = 66,397,943,836.62
  5. Step 5: Solve for x
    x = 66,397,943,836.62/332,698.20
  6. Step 6: Final answer
    x = 199,574.10

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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.