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Finding the Fourth Proportional to 54,163.20, 81,244.80 and 41,041.20

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Solution

The fourth proportional to 54,163.20, 81,244.80 and 41,041.20 is: 61,561.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,163.20 : 81,244.80 = 41,041.20 : x
  2. Step 2: Convert to fraction form
    54,163.20/81,244.80 = 41,041.20/x
  3. Step 3: Cross multiply
    54,163.20x = 81,244.80 × 41,041.20
  4. Step 4: Simplify right side
    54,163.20x = 3,334,384,085.76
  5. Step 5: Solve for x
    x = 3,334,384,085.76/54,163.20
  6. Step 6: Final answer
    x = 61,561.80

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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.