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Finding the Fourth Proportional to 274,190.88, 378,231.44 and 159,456.96

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Solution

The fourth proportional to 274,190.88, 378,231.44 and 159,456.96 is: 219,962.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,190.88 : 378,231.44 = 159,456.96 : x
  2. Step 2: Convert to fraction form
    274,190.88/378,231.44 = 159,456.96/x
  3. Step 3: Cross multiply
    274,190.88x = 378,231.44 × 159,456.96
  4. Step 4: Simplify right side
    274,190.88x = 60,311,635,598.82
  5. Step 5: Solve for x
    x = 60,311,635,598.82/274,190.88
  6. Step 6: Final answer
    x = 219,962.22

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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.