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Finding the Fourth Proportional to 107,786.60, 161,704.20 and 32,910.20

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Solution

The fourth proportional to 107,786.60, 161,704.20 and 32,910.20 is: 49,372.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,786.60 : 161,704.20 = 32,910.20 : x
  2. Step 2: Convert to fraction form
    107,786.60/161,704.20 = 32,910.20/x
  3. Step 3: Cross multiply
    107,786.60x = 161,704.20 × 32,910.20
  4. Step 4: Simplify right side
    107,786.60x = 5,321,717,562.84
  5. Step 5: Solve for x
    x = 5,321,717,562.84/107,786.60
  6. Step 6: Final answer
    x = 49,372.72

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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.