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Finding the Fourth Proportional to 341,474.20, 512,057.70 and 131,042.20

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Solution

The fourth proportional to 341,474.20, 512,057.70 and 131,042.20 is: 196,504.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,474.20 : 512,057.70 = 131,042.20 : x
  2. Step 2: Convert to fraction form
    341,474.20/512,057.70 = 131,042.20/x
  3. Step 3: Cross multiply
    341,474.20x = 512,057.70 × 131,042.20
  4. Step 4: Simplify right side
    341,474.20x = 67,101,167,534.94
  5. Step 5: Solve for x
    x = 67,101,167,534.94/341,474.20
  6. Step 6: Final answer
    x = 196,504.36

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1.5x scale

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.