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Finding the Fourth Proportional to 168,771.60, 252,865.80 and 109,576.80

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Solution

The fourth proportional to 168,771.60, 252,865.80 and 109,576.80 is: 164,175.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,771.60 : 252,865.80 = 109,576.80 : x
  2. Step 2: Convert to fraction form
    168,771.60/252,865.80 = 109,576.80/x
  3. Step 3: Cross multiply
    168,771.60x = 252,865.80 × 109,576.80
  4. Step 4: Simplify right side
    168,771.60x = 27,708,225,193.44
  5. Step 5: Solve for x
    x = 27,708,225,193.44/168,771.60
  6. Step 6: Final answer
    x = 164,175.88

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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.