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Finding the Fourth Proportional to 133,912.56, 200,792.72 and 103,506.94

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Solution

The fourth proportional to 133,912.56, 200,792.72 and 103,506.94 is: 155,201.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,912.56 : 200,792.72 = 103,506.94 : x
  2. Step 2: Convert to fraction form
    133,912.56/200,792.72 = 103,506.94/x
  3. Step 3: Cross multiply
    133,912.56x = 200,792.72 × 103,506.94
  4. Step 4: Simplify right side
    133,912.56x = 20,783,440,021.48
  5. Step 5: Solve for x
    x = 20,783,440,021.48/133,912.56
  6. Step 6: Final answer
    x = 155,201.57

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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.