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Finding the Fourth Proportional to 63,561.82, 87,404.26 and 55,163.74

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Solution

The fourth proportional to 63,561.82, 87,404.26 and 55,163.74 is: 75,856.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,561.82 : 87,404.26 = 55,163.74 : x
  2. Step 2: Convert to fraction form
    63,561.82/87,404.26 = 55,163.74/x
  3. Step 3: Cross multiply
    63,561.82x = 87,404.26 × 55,163.74
  4. Step 4: Simplify right side
    63,561.82x = 4,821,545,436.51
  5. Step 5: Solve for x
    x = 4,821,545,436.51/63,561.82
  6. Step 6: Final answer
    x = 75,856.01

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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.