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Finding the Fourth Proportional to 82,800.86, 124,163.22 and 26,630.60

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Solution

The fourth proportional to 82,800.86, 124,163.22 and 26,630.60 is: 39,933.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,800.86 : 124,163.22 = 26,630.60 : x
  2. Step 2: Convert to fraction form
    82,800.86/124,163.22 = 26,630.60/x
  3. Step 3: Cross multiply
    82,800.86x = 124,163.22 × 26,630.60
  4. Step 4: Simplify right side
    82,800.86x = 3,306,541,046.53
  5. Step 5: Solve for x
    x = 3,306,541,046.53/82,800.86
  6. Step 6: Final answer
    x = 39,933.66

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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.