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Finding the Fourth Proportional to 325,604.20, 488,175.90 and 125,847.40

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Solution

The fourth proportional to 325,604.20, 488,175.90 and 125,847.40 is: 188,682.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,604.20 : 488,175.90 = 125,847.40 : x
  2. Step 2: Convert to fraction form
    325,604.20/488,175.90 = 125,847.40/x
  3. Step 3: Cross multiply
    325,604.20x = 488,175.90 × 125,847.40
  4. Step 4: Simplify right side
    325,604.20x = 61,435,667,757.66
  5. Step 5: Solve for x
    x = 61,435,667,757.66/325,604.20
  6. Step 6: Final answer
    x = 188,682.05

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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.