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Finding the Fourth Proportional to 378,866.34, 568,393.07 and 112,625.73

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Solution

The fourth proportional to 378,866.34, 568,393.07 and 112,625.73 is: 168,966.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,866.34 : 568,393.07 = 112,625.73 : x
  2. Step 2: Convert to fraction form
    378,866.34/568,393.07 = 112,625.73/x
  3. Step 3: Cross multiply
    378,866.34x = 568,393.07 × 112,625.73
  4. Step 4: Simplify right side
    378,866.34x = 64,015,683,872.56
  5. Step 5: Solve for x
    x = 64,015,683,872.56/378,866.34
  6. Step 6: Final answer
    x = 168,966.41

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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.