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Finding the Fourth Proportional to 67,144.79, 100,717.20 and 17,224.88

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Solution

The fourth proportional to 67,144.79, 100,717.20 and 17,224.88 is: 25,837.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,144.79 : 100,717.20 = 17,224.88 : x
  2. Step 2: Convert to fraction form
    67,144.79/100,717.20 = 17,224.88/x
  3. Step 3: Cross multiply
    67,144.79x = 100,717.20 × 17,224.88
  4. Step 4: Simplify right side
    67,144.79x = 1,734,841,180.35
  5. Step 5: Solve for x
    x = 1,734,841,180.35/67,144.79
  6. Step 6: Final answer
    x = 25,837.32

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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.