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Finding the Fourth Proportional to 69,067.64, 103,796.46 and 40,992.94

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Solution

The fourth proportional to 69,067.64, 103,796.46 and 40,992.94 is: 61,605.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,067.64 : 103,796.46 = 40,992.94 : x
  2. Step 2: Convert to fraction form
    69,067.64/103,796.46 = 40,992.94/x
  3. Step 3: Cross multiply
    69,067.64x = 103,796.46 × 40,992.94
  4. Step 4: Simplify right side
    69,067.64x = 4,254,922,056.99
  5. Step 5: Solve for x
    x = 4,254,922,056.99/69,067.64
  6. Step 6: Final answer
    x = 61,605.15

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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.