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Finding the Fourth Proportional to 69,836.70, 104,781.93 and 32,415.90

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Solution

The fourth proportional to 69,836.70, 104,781.93 and 32,415.90 is: 48,636.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,836.70 : 104,781.93 = 32,415.90 : x
  2. Step 2: Convert to fraction form
    69,836.70/104,781.93 = 32,415.90/x
  3. Step 3: Cross multiply
    69,836.70x = 104,781.93 × 32,415.90
  4. Step 4: Simplify right side
    69,836.70x = 3,396,600,564.69
  5. Step 5: Solve for x
    x = 3,396,600,564.69/69,836.70
  6. Step 6: Final answer
    x = 48,636.33

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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.