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Finding the Fourth Proportional to 75,354.72, 103,998.72 and 43,523.58

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Solution

The fourth proportional to 75,354.72, 103,998.72 and 43,523.58 is: 60,067.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,354.72 : 103,998.72 = 43,523.58 : x
  2. Step 2: Convert to fraction form
    75,354.72/103,998.72 = 43,523.58/x
  3. Step 3: Cross multiply
    75,354.72x = 103,998.72 × 43,523.58
  4. Step 4: Simplify right side
    75,354.72x = 4,526,396,609.82
  5. Step 5: Solve for x
    x = 4,526,396,609.82/75,354.72
  6. Step 6: Final answer
    x = 60,067.86

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1.5x scale

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.