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Finding the Fourth Proportional to 133,115.60, 199,414.20 and 73,845.20

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Solution

The fourth proportional to 133,115.60, 199,414.20 and 73,845.20 is: 110,624.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,115.60 : 199,414.20 = 73,845.20 : x
  2. Step 2: Convert to fraction form
    133,115.60/199,414.20 = 73,845.20/x
  3. Step 3: Cross multiply
    133,115.60x = 199,414.20 × 73,845.20
  4. Step 4: Simplify right side
    133,115.60x = 14,725,781,481.84
  5. Step 5: Solve for x
    x = 14,725,781,481.84/133,115.60
  6. Step 6: Final answer
    x = 110,624.01

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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.