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Finding the Fourth Proportional to 73,771.20, 110,656.68 and 18,367.20

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Solution

The fourth proportional to 73,771.20, 110,656.68 and 18,367.20 is: 27,550.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,771.20 : 110,656.68 = 18,367.20 : x
  2. Step 2: Convert to fraction form
    73,771.20/110,656.68 = 18,367.20/x
  3. Step 3: Cross multiply
    73,771.20x = 110,656.68 × 18,367.20
  4. Step 4: Simplify right side
    73,771.20x = 2,032,453,372.90
  5. Step 5: Solve for x
    x = 2,032,453,372.90/73,771.20
  6. Step 6: Final answer
    x = 27,550.77

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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.