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Finding the Fourth Proportional to 111,912.56, 167,786.64 and 52,714.88

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Solution

The fourth proportional to 111,912.56, 167,786.64 and 52,714.88 is: 79,033.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,912.56 : 167,786.64 = 52,714.88 : x
  2. Step 2: Convert to fraction form
    111,912.56/167,786.64 = 52,714.88/x
  3. Step 3: Cross multiply
    111,912.56x = 167,786.64 × 52,714.88
  4. Step 4: Simplify right side
    111,912.56x = 8,844,852,593.20
  5. Step 5: Solve for x
    x = 8,844,852,593.20/111,912.56
  6. Step 6: Final answer
    x = 79,033.60

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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.