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Finding the Fourth Proportional to 67,404.30, 101,126.97 and 47,720.94

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Solution

The fourth proportional to 67,404.30, 101,126.97 and 47,720.94 is: 71,595.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,404.30 : 101,126.97 = 47,720.94 : x
  2. Step 2: Convert to fraction form
    67,404.30/101,126.97 = 47,720.94/x
  3. Step 3: Cross multiply
    67,404.30x = 101,126.97 × 47,720.94
  4. Step 4: Simplify right side
    67,404.30x = 4,825,874,067.75
  5. Step 5: Solve for x
    x = 4,825,874,067.75/67,404.30
  6. Step 6: Final answer
    x = 71,595.94

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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.