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Finding the Fourth Proportional to 69,033.60, 103,404.60 and 57,369.60

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Solution

The fourth proportional to 69,033.60, 103,404.60 and 57,369.60 is: 85,933.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,033.60 : 103,404.60 = 57,369.60 : x
  2. Step 2: Convert to fraction form
    69,033.60/103,404.60 = 57,369.60/x
  3. Step 3: Cross multiply
    69,033.60x = 103,404.60 × 57,369.60
  4. Step 4: Simplify right side
    69,033.60x = 5,932,280,540.16
  5. Step 5: Solve for x
    x = 5,932,280,540.16/69,033.60
  6. Step 6: Final answer
    x = 85,933.23

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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.