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Finding the Fourth Proportional to 92,661.45, 138,990.96 and 22,540.83

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Solution

The fourth proportional to 92,661.45, 138,990.96 and 22,540.83 is: 33,810.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,661.45 : 138,990.96 = 22,540.83 : x
  2. Step 2: Convert to fraction form
    92,661.45/138,990.96 = 22,540.83/x
  3. Step 3: Cross multiply
    92,661.45x = 138,990.96 × 22,540.83
  4. Step 4: Simplify right side
    92,661.45x = 3,132,971,600.90
  5. Step 5: Solve for x
    x = 3,132,971,600.90/92,661.45
  6. Step 6: Final answer
    x = 33,810.95

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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.