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Finding the Fourth Proportional to 341,422.86, 512,200.20 and 131,044.41

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Solution

The fourth proportional to 341,422.86, 512,200.20 and 131,044.41 is: 196,591.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,422.86 : 512,200.20 = 131,044.41 : x
  2. Step 2: Convert to fraction form
    341,422.86/512,200.20 = 131,044.41/x
  3. Step 3: Cross multiply
    341,422.86x = 512,200.20 × 131,044.41
  4. Step 4: Simplify right side
    341,422.86x = 67,120,973,010.88
  5. Step 5: Solve for x
    x = 67,120,973,010.88/341,422.86
  6. Step 6: Final answer
    x = 196,591.91

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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.