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Finding the Fourth Proportional to 84,636.26, 126,844.43 and 34,659.66

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Solution

The fourth proportional to 84,636.26, 126,844.43 and 34,659.66 is: 51,944.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,636.26 : 126,844.43 = 34,659.66 : x
  2. Step 2: Convert to fraction form
    84,636.26/126,844.43 = 34,659.66/x
  3. Step 3: Cross multiply
    84,636.26x = 126,844.43 × 34,659.66
  4. Step 4: Simplify right side
    84,636.26x = 4,396,384,643.40
  5. Step 5: Solve for x
    x = 4,396,384,643.40/84,636.26
  6. Step 6: Final answer
    x = 51,944.46

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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.