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Finding the Fourth Proportional to 75,778.32, 104,553 and 43,940.88

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Solution

The fourth proportional to 75,778.32, 104,553 and 43,940.88 is: 60,626.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,778.32 : 104,553 = 43,940.88 : x
  2. Step 2: Convert to fraction form
    75,778.32/104,553 = 43,940.88/x
  3. Step 3: Cross multiply
    75,778.32x = 104,553 × 43,940.88
  4. Step 4: Simplify right side
    75,778.32x = 4,594,150,826.64
  5. Step 5: Solve for x
    x = 4,594,150,826.64/75,778.32
  6. Step 6: Final answer
    x = 60,626.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.