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Finding the Fourth Proportional to 69,179.51, 95,474.52 and 40,497.43

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Solution

The fourth proportional to 69,179.51, 95,474.52 and 40,497.43 is: 55,890.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,179.51 : 95,474.52 = 40,497.43 : x
  2. Step 2: Convert to fraction form
    69,179.51/95,474.52 = 40,497.43/x
  3. Step 3: Cross multiply
    69,179.51x = 95,474.52 × 40,497.43
  4. Step 4: Simplify right side
    69,179.51x = 3,866,472,824.09
  5. Step 5: Solve for x
    x = 3,866,472,824.09/69,179.51
  6. Step 6: Final answer
    x = 55,890.43

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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.