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Finding the Fourth Proportional to 79,889.87, 110,222.25 and 53,037.56

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Solution

The fourth proportional to 79,889.87, 110,222.25 and 53,037.56 is: 73,174.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,889.87 : 110,222.25 = 53,037.56 : x
  2. Step 2: Convert to fraction form
    79,889.87/110,222.25 = 53,037.56/x
  3. Step 3: Cross multiply
    79,889.87x = 110,222.25 × 53,037.56
  4. Step 4: Simplify right side
    79,889.87x = 5,845,919,197.71
  5. Step 5: Solve for x
    x = 5,845,919,197.71/79,889.87
  6. Step 6: Final answer
    x = 73,174.72

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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.