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Finding the Fourth Proportional to 251,174.20, 377,375.70 and 188,966.20

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Solution

The fourth proportional to 251,174.20, 377,375.70 and 188,966.20 is: 283,911.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,174.20 : 377,375.70 = 188,966.20 : x
  2. Step 2: Convert to fraction form
    251,174.20/377,375.70 = 188,966.20/x
  3. Step 3: Cross multiply
    251,174.20x = 377,375.70 × 188,966.20
  4. Step 4: Simplify right side
    251,174.20x = 71,311,252,001.34
  5. Step 5: Solve for x
    x = 71,311,252,001.34/251,174.20
  6. Step 6: Final answer
    x = 283,911.53

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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.