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Finding the Fourth Proportional to 251,173.20, 377,374.20 and 188,965.20

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Solution

The fourth proportional to 251,173.20, 377,374.20 and 188,965.20 is: 283,910.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,173.20 : 377,374.20 = 188,965.20 : x
  2. Step 2: Convert to fraction form
    251,173.20/377,374.20 = 188,965.20/x
  3. Step 3: Cross multiply
    251,173.20x = 377,374.20 × 188,965.20
  4. Step 4: Simplify right side
    251,173.20x = 71,310,591,177.84
  5. Step 5: Solve for x
    x = 71,310,591,177.84/251,173.20
  6. Step 6: Final answer
    x = 283,910.03

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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.