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Finding the Fourth Proportional to 267,103.40, 400,653.59 and 67,422.97

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Solution

The fourth proportional to 267,103.40, 400,653.59 and 67,422.97 is: 101,134.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,103.40 : 400,653.59 = 67,422.97 : x
  2. Step 2: Convert to fraction form
    267,103.40/400,653.59 = 67,422.97/x
  3. Step 3: Cross multiply
    267,103.40x = 400,653.59 × 67,422.97
  4. Step 4: Simplify right side
    267,103.40x = 27,013,252,975.69
  5. Step 5: Solve for x
    x = 27,013,252,975.69/267,103.40
  6. Step 6: Final answer
    x = 101,134.07

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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.