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Finding the Fourth Proportional to 74,388.97, 111,635.30 and 32,813.29

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Solution

The fourth proportional to 74,388.97, 111,635.30 and 32,813.29 is: 49,242.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,388.97 : 111,635.30 = 32,813.29 : x
  2. Step 2: Convert to fraction form
    74,388.97/111,635.30 = 32,813.29/x
  3. Step 3: Cross multiply
    74,388.97x = 111,635.30 × 32,813.29
  4. Step 4: Simplify right side
    74,388.97x = 3,663,121,473.14
  5. Step 5: Solve for x
    x = 3,663,121,473.14/74,388.97
  6. Step 6: Final answer
    x = 49,242.80

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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.