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Finding the Fourth Proportional to 79,270.20, 118,910.70 and 25,230.60

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Solution

The fourth proportional to 79,270.20, 118,910.70 and 25,230.60 is: 37,847.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,270.20 : 118,910.70 = 25,230.60 : x
  2. Step 2: Convert to fraction form
    79,270.20/118,910.70 = 25,230.60/x
  3. Step 3: Cross multiply
    79,270.20x = 118,910.70 × 25,230.60
  4. Step 4: Simplify right side
    79,270.20x = 3,000,188,307.42
  5. Step 5: Solve for x
    x = 3,000,188,307.42/79,270.20
  6. Step 6: Final answer
    x = 37,847.62

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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.