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Finding the Fourth Proportional to 67,272.88, 100,874.28 and 25,118.30

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Solution

The fourth proportional to 67,272.88, 100,874.28 and 25,118.30 is: 37,664.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,272.88 : 100,874.28 = 25,118.30 : x
  2. Step 2: Convert to fraction form
    67,272.88/100,874.28 = 25,118.30/x
  3. Step 3: Cross multiply
    67,272.88x = 100,874.28 × 25,118.30
  4. Step 4: Simplify right side
    67,272.88x = 2,533,790,017.15
  5. Step 5: Solve for x
    x = 2,533,790,017.15/67,272.88
  6. Step 6: Final answer
    x = 37,664.36

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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.