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Finding the Fourth Proportional to 72,902.26, 109,195.15 and 35,383.48

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Solution

The fourth proportional to 72,902.26, 109,195.15 and 35,383.48 is: 52,998.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,902.26 : 109,195.15 = 35,383.48 : x
  2. Step 2: Convert to fraction form
    72,902.26/109,195.15 = 35,383.48/x
  3. Step 3: Cross multiply
    72,902.26x = 109,195.15 × 35,383.48
  4. Step 4: Simplify right side
    72,902.26x = 3,863,704,406.12
  5. Step 5: Solve for x
    x = 3,863,704,406.12/72,902.26
  6. Step 6: Final answer
    x = 52,998.42

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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.