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Finding the Fourth Proportional to 378,473.92, 567,820.44 and 112,240.85

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Solution

The fourth proportional to 378,473.92, 567,820.44 and 112,240.85 is: 168,393.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,473.92 : 567,820.44 = 112,240.85 : x
  2. Step 2: Convert to fraction form
    378,473.92/567,820.44 = 112,240.85/x
  3. Step 3: Cross multiply
    378,473.92x = 567,820.44 × 112,240.85
  4. Step 4: Simplify right side
    378,473.92x = 63,732,645,993.87
  5. Step 5: Solve for x
    x = 63,732,645,993.87/378,473.92
  6. Step 6: Final answer
    x = 168,393.76

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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.