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Finding the Fourth Proportional to 72,464.49, 108,704.19 and 25,079.50

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Solution

The fourth proportional to 72,464.49, 108,704.19 and 25,079.50 is: 37,621.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,464.49 : 108,704.19 = 25,079.50 : x
  2. Step 2: Convert to fraction form
    72,464.49/108,704.19 = 25,079.50/x
  3. Step 3: Cross multiply
    72,464.49x = 108,704.19 × 25,079.50
  4. Step 4: Simplify right side
    72,464.49x = 2,726,246,963.03
  5. Step 5: Solve for x
    x = 2,726,246,963.03/72,464.49
  6. Step 6: Final answer
    x = 37,621.83

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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.