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Finding the Fourth Proportional to 74,796.33, 112,193.61 and 21,489.60

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Solution

The fourth proportional to 74,796.33, 112,193.61 and 21,489.60 is: 32,234.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,796.33 : 112,193.61 = 21,489.60 : x
  2. Step 2: Convert to fraction form
    74,796.33/112,193.61 = 21,489.60/x
  3. Step 3: Cross multiply
    74,796.33x = 112,193.61 × 21,489.60
  4. Step 4: Simplify right side
    74,796.33x = 2,410,995,801.46
  5. Step 5: Solve for x
    x = 2,410,995,801.46/74,796.33
  6. Step 6: Final answer
    x = 32,234.15

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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.