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Finding the Fourth Proportional to 341,901.20, 512,698.20 and 131,469.20

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Solution

The fourth proportional to 341,901.20, 512,698.20 and 131,469.20 is: 197,144.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,901.20 : 512,698.20 = 131,469.20 : x
  2. Step 2: Convert to fraction form
    341,901.20/512,698.20 = 131,469.20/x
  3. Step 3: Cross multiply
    341,901.20x = 512,698.20 × 131,469.20
  4. Step 4: Simplify right side
    341,901.20x = 67,404,022,195.44
  5. Step 5: Solve for x
    x = 67,404,022,195.44/341,901.20
  6. Step 6: Final answer
    x = 197,144.74

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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.