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Finding the Fourth Proportional to 69,967.98, 104,963.49 and 34,908.78

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Solution

The fourth proportional to 69,967.98, 104,963.49 and 34,908.78 is: 52,368.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,967.98 : 104,963.49 = 34,908.78 : x
  2. Step 2: Convert to fraction form
    69,967.98/104,963.49 = 34,908.78/x
  3. Step 3: Cross multiply
    69,967.98x = 104,963.49 × 34,908.78
  4. Step 4: Simplify right side
    69,967.98x = 3,664,147,380.44
  5. Step 5: Solve for x
    x = 3,664,147,380.44/69,967.98
  6. Step 6: Final answer
    x = 52,368.92

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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.