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Finding the Fourth Proportional to 91,467.68, 137,221.68 and 27,423.27

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Solution

The fourth proportional to 91,467.68, 137,221.68 and 27,423.27 is: 41,140.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,467.68 : 137,221.68 = 27,423.27 : x
  2. Step 2: Convert to fraction form
    91,467.68/137,221.68 = 27,423.27/x
  3. Step 3: Cross multiply
    91,467.68x = 137,221.68 × 27,423.27
  4. Step 4: Simplify right side
    91,467.68x = 3,763,067,129.07
  5. Step 5: Solve for x
    x = 3,763,067,129.07/91,467.68
  6. Step 6: Final answer
    x = 41,140.95

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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.