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Finding the Fourth Proportional to 54,152.70, 81,216.90 and 35,563.20

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Solution

The fourth proportional to 54,152.70, 81,216.90 and 35,563.20 is: 53,336.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,152.70 : 81,216.90 = 35,563.20 : x
  2. Step 2: Convert to fraction form
    54,152.70/81,216.90 = 35,563.20/x
  3. Step 3: Cross multiply
    54,152.70x = 81,216.90 × 35,563.20
  4. Step 4: Simplify right side
    54,152.70x = 2,888,332,858.08
  5. Step 5: Solve for x
    x = 2,888,332,858.08/54,152.70
  6. Step 6: Final answer
    x = 53,336.82

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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.