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Finding the Fourth Proportional to 325,716.40, 488,558.40 and 167,960.80

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Solution

The fourth proportional to 325,716.40, 488,558.40 and 167,960.80 is: 251,932.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,716.40 : 488,558.40 = 167,960.80 : x
  2. Step 2: Convert to fraction form
    325,716.40/488,558.40 = 167,960.80/x
  3. Step 3: Cross multiply
    325,716.40x = 488,558.40 × 167,960.80
  4. Step 4: Simplify right side
    325,716.40x = 82,058,659,710.72
  5. Step 5: Solve for x
    x = 82,058,659,710.72/325,716.40
  6. Step 6: Final answer
    x = 251,932.85

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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.