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Finding the Fourth Proportional to 91,067.68, 136,395.24 and 48,874.24

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Solution

The fourth proportional to 91,067.68, 136,395.24 and 48,874.24 is: 73,200.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,067.68 : 136,395.24 = 48,874.24 : x
  2. Step 2: Convert to fraction form
    91,067.68/136,395.24 = 48,874.24/x
  3. Step 3: Cross multiply
    91,067.68x = 136,395.24 × 48,874.24
  4. Step 4: Simplify right side
    91,067.68x = 6,666,213,694.62
  5. Step 5: Solve for x
    x = 6,666,213,694.62/91,067.68
  6. Step 6: Final answer
    x = 73,200.65

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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.