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Finding the Fourth Proportional to 73,774.87, 110,662.94 and 21,184.34

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Solution

The fourth proportional to 73,774.87, 110,662.94 and 21,184.34 is: 31,776.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,774.87 : 110,662.94 = 21,184.34 : x
  2. Step 2: Convert to fraction form
    73,774.87/110,662.94 = 21,184.34/x
  3. Step 3: Cross multiply
    73,774.87x = 110,662.94 × 21,184.34
  4. Step 4: Simplify right side
    73,774.87x = 2,344,320,846.01
  5. Step 5: Solve for x
    x = 2,344,320,846.01/73,774.87
  6. Step 6: Final answer
    x = 31,776.69

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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.