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Finding the Fourth Proportional to 69,027.30, 103,431.60 and 44,022.60

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Solution

The fourth proportional to 69,027.30, 103,431.60 and 44,022.60 is: 65,964.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,027.30 : 103,431.60 = 44,022.60 : x
  2. Step 2: Convert to fraction form
    69,027.30/103,431.60 = 44,022.60/x
  3. Step 3: Cross multiply
    69,027.30x = 103,431.60 × 44,022.60
  4. Step 4: Simplify right side
    69,027.30x = 4,553,327,954.16
  5. Step 5: Solve for x
    x = 4,553,327,954.16/69,027.30
  6. Step 6: Final answer
    x = 65,964.16

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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.