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Finding the Fourth Proportional to 325,763.45, 487,979.96 and 167,659.75

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Solution

The fourth proportional to 325,763.45, 487,979.96 and 167,659.75 is: 251,147.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,763.45 : 487,979.96 = 167,659.75 : x
  2. Step 2: Convert to fraction form
    325,763.45/487,979.96 = 167,659.75/x
  3. Step 3: Cross multiply
    325,763.45x = 487,979.96 × 167,659.75
  4. Step 4: Simplify right side
    325,763.45x = 81,814,597,870.29
  5. Step 5: Solve for x
    x = 81,814,597,870.29/325,763.45
  6. Step 6: Final answer
    x = 251,147.26

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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.