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Finding the Fourth Proportional to 75,995.83, 104,819.86 and 53,339.88

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Solution

The fourth proportional to 75,995.83, 104,819.86 and 53,339.88 is: 73,570.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,995.83 : 104,819.86 = 53,339.88 : x
  2. Step 2: Convert to fraction form
    75,995.83/104,819.86 = 53,339.88/x
  3. Step 3: Cross multiply
    75,995.83x = 104,819.86 × 53,339.88
  4. Step 4: Simplify right side
    75,995.83x = 5,591,077,963.22
  5. Step 5: Solve for x
    x = 5,591,077,963.22/75,995.83
  6. Step 6: Final answer
    x = 73,570.85

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Why These Related Problems?

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