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Finding the Fourth Proportional to 272,059.44, 408,119.52 and 72,387.52

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Solution

The fourth proportional to 272,059.44, 408,119.52 and 72,387.52 is: 108,589.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,059.44 : 408,119.52 = 72,387.52 : x
  2. Step 2: Convert to fraction form
    272,059.44/408,119.52 = 72,387.52/x
  3. Step 3: Cross multiply
    272,059.44x = 408,119.52 × 72,387.52
  4. Step 4: Simplify right side
    272,059.44x = 29,542,759,916.39
  5. Step 5: Solve for x
    x = 29,542,759,916.39/272,059.44
  6. Step 6: Final answer
    x = 108,589.36

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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.