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Finding the Fourth Proportional to 72,092.26, 107,993.40 and 35,959.78

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Solution

The fourth proportional to 72,092.26, 107,993.40 and 35,959.78 is: 53,867.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,092.26 : 107,993.40 = 35,959.78 : x
  2. Step 2: Convert to fraction form
    72,092.26/107,993.40 = 35,959.78/x
  3. Step 3: Cross multiply
    72,092.26x = 107,993.40 × 35,959.78
  4. Step 4: Simplify right side
    72,092.26x = 3,883,418,905.45
  5. Step 5: Solve for x
    x = 3,883,418,905.45/72,092.26
  6. Step 6: Final answer
    x = 53,867.35

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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.