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Finding the Fourth Proportional to 378,734.44, 568,116.06 and 126,037.48

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Solution

The fourth proportional to 378,734.44, 568,116.06 and 126,037.48 is: 189,061.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,734.44 : 568,116.06 = 126,037.48 : x
  2. Step 2: Convert to fraction form
    378,734.44/568,116.06 = 126,037.48/x
  3. Step 3: Cross multiply
    378,734.44x = 568,116.06 × 126,037.48
  4. Step 4: Simplify right side
    378,734.44x = 71,603,916,549.93
  5. Step 5: Solve for x
    x = 71,603,916,549.93/378,734.44
  6. Step 6: Final answer
    x = 189,061.01

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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.