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Finding the Fourth Proportional to 325,734.93, 488,589.62 and 136,146.33

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Solution

The fourth proportional to 325,734.93, 488,589.62 and 136,146.33 is: 204,214.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,734.93 : 488,589.62 = 136,146.33 : x
  2. Step 2: Convert to fraction form
    325,734.93/488,589.62 = 136,146.33/x
  3. Step 3: Cross multiply
    325,734.93x = 488,589.62 × 136,146.33
  4. Step 4: Simplify right side
    325,734.93x = 66,519,682,958.36
  5. Step 5: Solve for x
    x = 66,519,682,958.36/325,734.93
  6. Step 6: Final answer
    x = 204,214.15

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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.