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Finding the Fourth Proportional to 69,694.88, 96,187.60 and 41,400.72

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Solution

The fourth proportional to 69,694.88, 96,187.60 and 41,400.72 is: 57,138.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,694.88 : 96,187.60 = 41,400.72 : x
  2. Step 2: Convert to fraction form
    69,694.88/96,187.60 = 41,400.72/x
  3. Step 3: Cross multiply
    69,694.88x = 96,187.60 × 41,400.72
  4. Step 4: Simplify right side
    69,694.88x = 3,982,235,895.07
  5. Step 5: Solve for x
    x = 3,982,235,895.07/69,694.88
  6. Step 6: Final answer
    x = 57,138.14

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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.