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Finding the Fourth Proportional to 196,373.88, 270,982.98 and 115,797.60

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Solution

The fourth proportional to 196,373.88, 270,982.98 and 115,797.60 is: 159,793.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,373.88 : 270,982.98 = 115,797.60 : x
  2. Step 2: Convert to fraction form
    196,373.88/270,982.98 = 115,797.60/x
  3. Step 3: Cross multiply
    196,373.88x = 270,982.98 × 115,797.60
  4. Step 4: Simplify right side
    196,373.88x = 31,379,178,724.85
  5. Step 5: Solve for x
    x = 31,379,178,724.85/196,373.88
  6. Step 6: Final answer
    x = 159,793.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.