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Finding the Fourth Proportional to 133,911.56, 200,791.22 and 103,505.94

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Solution

The fourth proportional to 133,911.56, 200,791.22 and 103,505.94 is: 155,200.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,911.56 : 200,791.22 = 103,505.94 : x
  2. Step 2: Convert to fraction form
    133,911.56/200,791.22 = 103,505.94/x
  3. Step 3: Cross multiply
    133,911.56x = 200,791.22 × 103,505.94
  4. Step 4: Simplify right side
    133,911.56x = 20,783,083,969.85
  5. Step 5: Solve for x
    x = 20,783,083,969.85/133,911.56
  6. Step 6: Final answer
    x = 155,200.07

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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.