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Finding the Fourth Proportional to 378,577.43, 567,743.28 and 125,790.04

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Solution

The fourth proportional to 378,577.43, 567,743.28 and 125,790.04 is: 188,644.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,577.43 : 567,743.28 = 125,790.04 : x
  2. Step 2: Convert to fraction form
    378,577.43/567,743.28 = 125,790.04/x
  3. Step 3: Cross multiply
    378,577.43x = 567,743.28 × 125,790.04
  4. Step 4: Simplify right side
    378,577.43x = 71,416,449,900.93
  5. Step 5: Solve for x
    x = 71,416,449,900.93/378,577.43
  6. Step 6: Final answer
    x = 188,644.24

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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.