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Finding the Fourth Proportional to 341,475.20, 512,059.20 and 131,043.20

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Solution

The fourth proportional to 341,475.20, 512,059.20 and 131,043.20 is: 196,505.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,475.20 : 512,059.20 = 131,043.20 : x
  2. Step 2: Convert to fraction form
    341,475.20/512,059.20 = 131,043.20/x
  3. Step 3: Cross multiply
    341,475.20x = 512,059.20 × 131,043.20
  4. Step 4: Simplify right side
    341,475.20x = 67,101,876,157.44
  5. Step 5: Solve for x
    x = 67,101,876,157.44/341,475.20
  6. Step 6: Final answer
    x = 196,505.86

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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.