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Finding the Fourth Proportional to 82,865.70, 124,361.73 and 60,735.69

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Solution

The fourth proportional to 82,865.70, 124,361.73 and 60,735.69 is: 91,149.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,865.70 : 124,361.73 = 60,735.69 : x
  2. Step 2: Convert to fraction form
    82,865.70/124,361.73 = 60,735.69/x
  3. Step 3: Cross multiply
    82,865.70x = 124,361.73 × 60,735.69
  4. Step 4: Simplify right side
    82,865.70x = 7,553,195,481.14
  5. Step 5: Solve for x
    x = 7,553,195,481.14/82,865.70
  6. Step 6: Final answer
    x = 91,149.84

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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.