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Finding the Fourth Proportional to 83,400.80, 125,101.20 and 41,264.60

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Solution

The fourth proportional to 83,400.80, 125,101.20 and 41,264.60 is: 61,896.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,400.80 : 125,101.20 = 41,264.60 : x
  2. Step 2: Convert to fraction form
    83,400.80/125,101.20 = 41,264.60/x
  3. Step 3: Cross multiply
    83,400.80x = 125,101.20 × 41,264.60
  4. Step 4: Simplify right side
    83,400.80x = 5,162,250,977.52
  5. Step 5: Solve for x
    x = 5,162,250,977.52/83,400.80
  6. Step 6: Final answer
    x = 61,896.90

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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.