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Finding the Fourth Proportional to 199,059.40, 298,589.10 and 65,960.20

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Solution

The fourth proportional to 199,059.40, 298,589.10 and 65,960.20 is: 98,940.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,059.40 : 298,589.10 = 65,960.20 : x
  2. Step 2: Convert to fraction form
    199,059.40/298,589.10 = 65,960.20/x
  3. Step 3: Cross multiply
    199,059.40x = 298,589.10 × 65,960.20
  4. Step 4: Simplify right side
    199,059.40x = 19,694,996,753.82
  5. Step 5: Solve for x
    x = 19,694,996,753.82/199,059.40
  6. Step 6: Final answer
    x = 98,940.30

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Similar ratio
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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.