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Finding the Fourth Proportional to 67,137.54, 100,685.71 and 22,150.59

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Solution

The fourth proportional to 67,137.54, 100,685.71 and 22,150.59 is: 33,219.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,137.54 : 100,685.71 = 22,150.59 : x
  2. Step 2: Convert to fraction form
    67,137.54/100,685.71 = 22,150.59/x
  3. Step 3: Cross multiply
    67,137.54x = 100,685.71 × 22,150.59
  4. Step 4: Simplify right side
    67,137.54x = 2,230,247,881.07
  5. Step 5: Solve for x
    x = 2,230,247,881.07/67,137.54
  6. Step 6: Final answer
    x = 33,219.09

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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.