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Finding the Fourth Proportional to 133,068.80, 199,797.60 and 54,336.80

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Solution

The fourth proportional to 133,068.80, 199,797.60 and 54,336.80 is: 81,584.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,068.80 : 199,797.60 = 54,336.80 : x
  2. Step 2: Convert to fraction form
    133,068.80/199,797.60 = 54,336.80/x
  3. Step 3: Cross multiply
    133,068.80x = 199,797.60 × 54,336.80
  4. Step 4: Simplify right side
    133,068.80x = 10,856,362,231.68
  5. Step 5: Solve for x
    x = 10,856,362,231.68/133,068.80
  6. Step 6: Final answer
    x = 81,584.58

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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.