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Finding the Fourth Proportional to 67,141.35, 100,690.47 and 22,152.60

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Solution

The fourth proportional to 67,141.35, 100,690.47 and 22,152.60 is: 33,221.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,141.35 : 100,690.47 = 22,152.60 : x
  2. Step 2: Convert to fraction form
    67,141.35/100,690.47 = 22,152.60/x
  3. Step 3: Cross multiply
    67,141.35x = 100,690.47 × 22,152.60
  4. Step 4: Simplify right side
    67,141.35x = 2,230,555,705.72
  5. Step 5: Solve for x
    x = 2,230,555,705.72/67,141.35
  6. Step 6: Final answer
    x = 33,221.79

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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.