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Finding the Fourth Proportional to 79,462.39, 109,657.68 and 43,163.54

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Solution

The fourth proportional to 79,462.39, 109,657.68 and 43,163.54 is: 59,565.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,462.39 : 109,657.68 = 43,163.54 : x
  2. Step 2: Convert to fraction form
    79,462.39/109,657.68 = 43,163.54/x
  3. Step 3: Cross multiply
    79,462.39x = 109,657.68 × 43,163.54
  4. Step 4: Simplify right side
    79,462.39x = 4,733,213,656.99
  5. Step 5: Solve for x
    x = 4,733,213,656.99/79,462.39
  6. Step 6: Final answer
    x = 59,565.46

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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.