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Finding the Fourth Proportional to 325,355.90, 488,033.85 and 167,891.90

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Solution

The fourth proportional to 325,355.90, 488,033.85 and 167,891.90 is: 251,837.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,355.90 : 488,033.85 = 167,891.90 : x
  2. Step 2: Convert to fraction form
    325,355.90/488,033.85 = 167,891.90/x
  3. Step 3: Cross multiply
    325,355.90x = 488,033.85 × 167,891.90
  4. Step 4: Simplify right side
    325,355.90x = 81,936,930,340.82
  5. Step 5: Solve for x
    x = 81,936,930,340.82/325,355.90
  6. Step 6: Final answer
    x = 251,837.85

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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.