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Finding the Fourth Proportional to 201,183.05, 301,796.45 and 74,808.47

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Solution

The fourth proportional to 201,183.05, 301,796.45 and 74,808.47 is: 112,220.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,183.05 : 301,796.45 = 74,808.47 : x
  2. Step 2: Convert to fraction form
    201,183.05/301,796.45 = 74,808.47/x
  3. Step 3: Cross multiply
    201,183.05x = 301,796.45 × 74,808.47
  4. Step 4: Simplify right side
    201,183.05x = 22,576,928,792.91
  5. Step 5: Solve for x
    x = 22,576,928,792.91/201,183.05
  6. Step 6: Final answer
    x = 112,220.83

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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.