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Finding the Fourth Proportional to 69,144.92, 103,629.90 and 44,175.32

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Solution

The fourth proportional to 69,144.92, 103,629.90 and 44,175.32 is: 66,207.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,144.92 : 103,629.90 = 44,175.32 : x
  2. Step 2: Convert to fraction form
    69,144.92/103,629.90 = 44,175.32/x
  3. Step 3: Cross multiply
    69,144.92x = 103,629.90 × 44,175.32
  4. Step 4: Simplify right side
    69,144.92x = 4,577,883,994.07
  5. Step 5: Solve for x
    x = 4,577,883,994.07/69,144.92
  6. Step 6: Final answer
    x = 66,207.09

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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.