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Finding the Fourth Proportional to 220,967.00, 331,314.86 and 85,873.33

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Solution

The fourth proportional to 220,967.00, 331,314.86 and 85,873.33 is: 128,757.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,967.00 : 331,314.86 = 85,873.33 : x
  2. Step 2: Convert to fraction form
    220,967.00/331,314.86 = 85,873.33/x
  3. Step 3: Cross multiply
    220,967.00x = 331,314.86 × 85,873.33
  4. Step 4: Simplify right side
    220,967.00x = 28,451,109,049.03
  5. Step 5: Solve for x
    x = 28,451,109,049.03/220,967.00
  6. Step 6: Final answer
    x = 128,757.28

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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.