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Finding the Fourth Proportional to 79,609.77, 109,866.06 and 43,800.66

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Solution

The fourth proportional to 79,609.77, 109,866.06 and 43,800.66 is: 60,447.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,609.77 : 109,866.06 = 43,800.66 : x
  2. Step 2: Convert to fraction form
    79,609.77/109,866.06 = 43,800.66/x
  3. Step 3: Cross multiply
    79,609.77x = 109,866.06 × 43,800.66
  4. Step 4: Simplify right side
    79,609.77x = 4,812,205,939.60
  5. Step 5: Solve for x
    x = 4,812,205,939.60/79,609.77
  6. Step 6: Final answer
    x = 60,447.43

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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.