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Finding the Fourth Proportional to 69,175.28, 103,859.40 and 35,464.88

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Solution

The fourth proportional to 69,175.28, 103,859.40 and 35,464.88 is: 53,246.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,175.28 : 103,859.40 = 35,464.88 : x
  2. Step 2: Convert to fraction form
    69,175.28/103,859.40 = 35,464.88/x
  3. Step 3: Cross multiply
    69,175.28x = 103,859.40 × 35,464.88
  4. Step 4: Simplify right side
    69,175.28x = 3,683,361,157.87
  5. Step 5: Solve for x
    x = 3,683,361,157.87/69,175.28
  6. Step 6: Final answer
    x = 53,246.78

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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.