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Finding the Fourth Proportional to 223,415.89, 335,120.91 and 54,937.67

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Solution

The fourth proportional to 223,415.89, 335,120.91 and 54,937.67 is: 82,405.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,415.89 : 335,120.91 = 54,937.67 : x
  2. Step 2: Convert to fraction form
    223,415.89/335,120.91 = 54,937.67/x
  3. Step 3: Cross multiply
    223,415.89x = 335,120.91 × 54,937.67
  4. Step 4: Simplify right side
    223,415.89x = 18,410,761,963.68
  5. Step 5: Solve for x
    x = 18,410,761,963.68/223,415.89
  6. Step 6: Final answer
    x = 82,405.79

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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.