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Finding the Fourth Proportional to 72,388.84, 108,578.12 and 22,467.74

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Solution

The fourth proportional to 72,388.84, 108,578.12 and 22,467.74 is: 33,700.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,388.84 : 108,578.12 = 22,467.74 : x
  2. Step 2: Convert to fraction form
    72,388.84/108,578.12 = 22,467.74/x
  3. Step 3: Cross multiply
    72,388.84x = 108,578.12 × 22,467.74
  4. Step 4: Simplify right side
    72,388.84x = 2,439,504,969.85
  5. Step 5: Solve for x
    x = 2,439,504,969.85/72,388.84
  6. Step 6: Final answer
    x = 33,700.01

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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.