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Finding the Fourth Proportional to 133,356.20, 200,034.30 and 54,418.60

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Solution

The fourth proportional to 133,356.20, 200,034.30 and 54,418.60 is: 81,627.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,356.20 : 200,034.30 = 54,418.60 : x
  2. Step 2: Convert to fraction form
    133,356.20/200,034.30 = 54,418.60/x
  3. Step 3: Cross multiply
    133,356.20x = 200,034.30 × 54,418.60
  4. Step 4: Simplify right side
    133,356.20x = 10,885,586,557.98
  5. Step 5: Solve for x
    x = 10,885,586,557.98/133,356.20
  6. Step 6: Final answer
    x = 81,627.90

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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.