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Finding the Fourth Proportional to 74,264.22, 111,400.11 and 21,677.67

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Solution

The fourth proportional to 74,264.22, 111,400.11 and 21,677.67 is: 32,517.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,264.22 : 111,400.11 = 21,677.67 : x
  2. Step 2: Convert to fraction form
    74,264.22/111,400.11 = 21,677.67/x
  3. Step 3: Cross multiply
    74,264.22x = 111,400.11 × 21,677.67
  4. Step 4: Simplify right side
    74,264.22x = 2,414,894,822.54
  5. Step 5: Solve for x
    x = 2,414,894,822.54/74,264.22
  6. Step 6: Final answer
    x = 32,517.61

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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.