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Finding the Fourth Proportional to 274,375.26, 378,672.57 and 166,938.84

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Solution

The fourth proportional to 274,375.26, 378,672.57 and 166,938.84 is: 230,396.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,375.26 : 378,672.57 = 166,938.84 : x
  2. Step 2: Convert to fraction form
    274,375.26/378,672.57 = 166,938.84/x
  3. Step 3: Cross multiply
    274,375.26x = 378,672.57 × 166,938.84
  4. Step 4: Simplify right side
    274,375.26x = 63,215,159,575.62
  5. Step 5: Solve for x
    x = 63,215,159,575.62/274,375.26
  6. Step 6: Final answer
    x = 230,396.72

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1.5x scale

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.