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Finding the Fourth Proportional to 104,137.98, 155,980.14 and 54,067.02

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Solution

The fourth proportional to 104,137.98, 155,980.14 and 54,067.02 is: 80,982.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,137.98 : 155,980.14 = 54,067.02 : x
  2. Step 2: Convert to fraction form
    104,137.98/155,980.14 = 54,067.02/x
  3. Step 3: Cross multiply
    104,137.98x = 155,980.14 × 54,067.02
  4. Step 4: Simplify right side
    104,137.98x = 8,433,381,348.98
  5. Step 5: Solve for x
    x = 8,433,381,348.98/104,137.98
  6. Step 6: Final answer
    x = 80,982.76

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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.