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Finding the Fourth Proportional to 69,963.80, 104,869.43 and 34,354.43

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Solution

The fourth proportional to 69,963.80, 104,869.43 and 34,354.43 is: 51,494.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,963.80 : 104,869.43 = 34,354.43 : x
  2. Step 2: Convert to fraction form
    69,963.80/104,869.43 = 34,354.43/x
  3. Step 3: Cross multiply
    69,963.80x = 104,869.43 × 34,354.43
  4. Step 4: Simplify right side
    69,963.80x = 3,602,729,511.29
  5. Step 5: Solve for x
    x = 3,602,729,511.29/69,963.80
  6. Step 6: Final answer
    x = 51,494.19

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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.