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Finding the Fourth Proportional to 69,246.40, 103,880.72 and 29,265.78

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Solution

The fourth proportional to 69,246.40, 103,880.72 and 29,265.78 is: 43,903.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,246.40 : 103,880.72 = 29,265.78 : x
  2. Step 2: Convert to fraction form
    69,246.40/103,880.72 = 29,265.78/x
  3. Step 3: Cross multiply
    69,246.40x = 103,880.72 × 29,265.78
  4. Step 4: Simplify right side
    69,246.40x = 3,040,150,262.54
  5. Step 5: Solve for x
    x = 3,040,150,262.54/69,246.40
  6. Step 6: Final answer
    x = 43,903.37

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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.