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Finding the Fourth Proportional to 69,919.39, 104,785.66 and 25,504.39

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Solution

The fourth proportional to 69,919.39, 104,785.66 and 25,504.39 is: 38,222.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,919.39 : 104,785.66 = 25,504.39 : x
  2. Step 2: Convert to fraction form
    69,919.39/104,785.66 = 25,504.39/x
  3. Step 3: Cross multiply
    69,919.39x = 104,785.66 × 25,504.39
  4. Step 4: Simplify right side
    69,919.39x = 2,672,494,339.05
  5. Step 5: Solve for x
    x = 2,672,494,339.05/69,919.39
  6. Step 6: Final answer
    x = 38,222.51

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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.