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Finding the Fourth Proportional to 121,366.50, 182,059.20 and 54,843.90

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Solution

The fourth proportional to 121,366.50, 182,059.20 and 54,843.90 is: 82,270.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,366.50 : 182,059.20 = 54,843.90 : x
  2. Step 2: Convert to fraction form
    121,366.50/182,059.20 = 54,843.90/x
  3. Step 3: Cross multiply
    121,366.50x = 182,059.20 × 54,843.90
  4. Step 4: Simplify right side
    121,366.50x = 9,984,836,558.88
  5. Step 5: Solve for x
    x = 9,984,836,558.88/121,366.50
  6. Step 6: Final answer
    x = 82,270.12

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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.