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Finding the Fourth Proportional to 378,362.97, 567,377.49 and 108,429.85

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Solution

The fourth proportional to 378,362.97, 567,377.49 and 108,429.85 is: 162,596.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,362.97 : 567,377.49 = 108,429.85 : x
  2. Step 2: Convert to fraction form
    378,362.97/567,377.49 = 108,429.85/x
  3. Step 3: Cross multiply
    378,362.97x = 567,377.49 × 108,429.85
  4. Step 4: Simplify right side
    378,362.97x = 61,520,657,529.85
  5. Step 5: Solve for x
    x = 61,520,657,529.85/378,362.97
  6. Step 6: Final answer
    x = 162,596.93

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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.