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Finding the Fourth Proportional to 69,251.80, 103,863.30 and 29,810.20

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Solution

The fourth proportional to 69,251.80, 103,863.30 and 29,810.20 is: 44,709.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,251.80 : 103,863.30 = 29,810.20 : x
  2. Step 2: Convert to fraction form
    69,251.80/103,863.30 = 29,810.20/x
  3. Step 3: Cross multiply
    69,251.80x = 103,863.30 × 29,810.20
  4. Step 4: Simplify right side
    69,251.80x = 3,096,185,745.66
  5. Step 5: Solve for x
    x = 3,096,185,745.66/69,251.80
  6. Step 6: Final answer
    x = 44,709.10

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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.