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Finding the Fourth Proportional to 67,197.10, 100,731.44 and 25,065.80

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Solution

The fourth proportional to 67,197.10, 100,731.44 and 25,065.80 is: 37,574.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,197.10 : 100,731.44 = 25,065.80 : x
  2. Step 2: Convert to fraction form
    67,197.10/100,731.44 = 25,065.80/x
  3. Step 3: Cross multiply
    67,197.10x = 100,731.44 × 25,065.80
  4. Step 4: Simplify right side
    67,197.10x = 2,524,914,128.75
  5. Step 5: Solve for x
    x = 2,524,914,128.75/67,197.10
  6. Step 6: Final answer
    x = 37,574.75

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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.