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Finding the Fourth Proportional to 67,685.60, 101,544.60 and 34,410.80

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Solution

The fourth proportional to 67,685.60, 101,544.60 and 34,410.80 is: 51,624.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,685.60 : 101,544.60 = 34,410.80 : x
  2. Step 2: Convert to fraction form
    67,685.60/101,544.60 = 34,410.80/x
  3. Step 3: Cross multiply
    67,685.60x = 101,544.60 × 34,410.80
  4. Step 4: Simplify right side
    67,685.60x = 3,494,230,921.68
  5. Step 5: Solve for x
    x = 3,494,230,921.68/67,685.60
  6. Step 6: Final answer
    x = 51,624.44

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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.