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Finding the Fourth Proportional to 75,285.92, 103,899.30 and 41,751.92

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Solution

The fourth proportional to 75,285.92, 103,899.30 and 41,751.92 is: 57,620.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,285.92 : 103,899.30 = 41,751.92 : x
  2. Step 2: Convert to fraction form
    75,285.92/103,899.30 = 41,751.92/x
  3. Step 3: Cross multiply
    75,285.92x = 103,899.30 × 41,751.92
  4. Step 4: Simplify right side
    75,285.92x = 4,337,995,261.66
  5. Step 5: Solve for x
    x = 4,337,995,261.66/75,285.92
  6. Step 6: Final answer
    x = 57,620.27

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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.