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Finding the Fourth Proportional to 83,425.75, 125,021.75 and 46,003.48

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Solution

The fourth proportional to 83,425.75, 125,021.75 and 46,003.48 is: 68,940.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,425.75 : 125,021.75 = 46,003.48 : x
  2. Step 2: Convert to fraction form
    83,425.75/125,021.75 = 46,003.48/x
  3. Step 3: Cross multiply
    83,425.75x = 125,021.75 × 46,003.48
  4. Step 4: Simplify right side
    83,425.75x = 5,751,435,033.12
  5. Step 5: Solve for x
    x = 5,751,435,033.12/83,425.75
  6. Step 6: Final answer
    x = 68,940.77

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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.