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Finding the Fourth Proportional to 69,143.92, 103,628.40 and 44,174.32

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Solution

The fourth proportional to 69,143.92, 103,628.40 and 44,174.32 is: 66,205.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,143.92 : 103,628.40 = 44,174.32 : x
  2. Step 2: Convert to fraction form
    69,143.92/103,628.40 = 44,174.32/x
  3. Step 3: Cross multiply
    69,143.92x = 103,628.40 × 44,174.32
  4. Step 4: Simplify right side
    69,143.92x = 4,577,714,102.69
  5. Step 5: Solve for x
    x = 4,577,714,102.69/69,143.92
  6. Step 6: Final answer
    x = 66,205.59

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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.