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Finding the Fourth Proportional to 69,939.90, 104,940.86 and 36,652.05

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Solution

The fourth proportional to 69,939.90, 104,940.86 and 36,652.05 is: 54,994.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,939.90 : 104,940.86 = 36,652.05 : x
  2. Step 2: Convert to fraction form
    69,939.90/104,940.86 = 36,652.05/x
  3. Step 3: Cross multiply
    69,939.90x = 104,940.86 × 36,652.05
  4. Step 4: Simplify right side
    69,939.90x = 3,846,297,464.50
  5. Step 5: Solve for x
    x = 3,846,297,464.50/69,939.90
  6. Step 6: Final answer
    x = 54,994.32

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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.