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Finding the Fourth Proportional to 79,134.69, 109,207.77 and 43,324.59

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Solution

The fourth proportional to 79,134.69, 109,207.77 and 43,324.59 is: 59,788.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,134.69 : 109,207.77 = 43,324.59 : x
  2. Step 2: Convert to fraction form
    79,134.69/109,207.77 = 43,324.59/x
  3. Step 3: Cross multiply
    79,134.69x = 109,207.77 × 43,324.59
  4. Step 4: Simplify right side
    79,134.69x = 4,731,381,860.06
  5. Step 5: Solve for x
    x = 4,731,381,860.06/79,134.69
  6. Step 6: Final answer
    x = 59,788.97

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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.