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Finding the Fourth Proportional to 54,753.75, 75,571.20 and 30,880.89

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Solution

The fourth proportional to 54,753.75, 75,571.20 and 30,880.89 is: 42,621.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,753.75 : 75,571.20 = 30,880.89 : x
  2. Step 2: Convert to fraction form
    54,753.75/75,571.20 = 30,880.89/x
  3. Step 3: Cross multiply
    54,753.75x = 75,571.20 × 30,880.89
  4. Step 4: Simplify right side
    54,753.75x = 2,333,705,914.37
  5. Step 5: Solve for x
    x = 2,333,705,914.37/54,753.75
  6. Step 6: Final answer
    x = 42,621.85

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.