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Finding the Fourth Proportional to 82,820.88, 124,193.20 and 26,650.60

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Solution

The fourth proportional to 82,820.88, 124,193.20 and 26,650.60 is: 39,963.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,820.88 : 124,193.20 = 26,650.60 : x
  2. Step 2: Convert to fraction form
    82,820.88/124,193.20 = 26,650.60/x
  3. Step 3: Cross multiply
    82,820.88x = 124,193.20 × 26,650.60
  4. Step 4: Simplify right side
    82,820.88x = 3,309,823,295.92
  5. Step 5: Solve for x
    x = 3,309,823,295.92/82,820.88
  6. Step 6: Final answer
    x = 39,963.63

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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.