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Finding the Fourth Proportional to 133,401.55, 200,028.48 and 54,571.15

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Solution

The fourth proportional to 133,401.55, 200,028.48 and 54,571.15 is: 81,826.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,401.55 : 200,028.48 = 54,571.15 : x
  2. Step 2: Convert to fraction form
    133,401.55/200,028.48 = 54,571.15/x
  3. Step 3: Cross multiply
    133,401.55x = 200,028.48 × 54,571.15
  4. Step 4: Simplify right side
    133,401.55x = 10,915,784,186.35
  5. Step 5: Solve for x
    x = 10,915,784,186.35/133,401.55
  6. Step 6: Final answer
    x = 81,826.52

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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.