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Finding the Fourth Proportional to 79,199.83, 109,295.76 and 43,391.11

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Solution

The fourth proportional to 79,199.83, 109,295.76 and 43,391.11 is: 59,879.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,199.83 : 109,295.76 = 43,391.11 : x
  2. Step 2: Convert to fraction form
    79,199.83/109,295.76 = 43,391.11/x
  3. Step 3: Cross multiply
    79,199.83x = 109,295.76 × 43,391.11
  4. Step 4: Simplify right side
    79,199.83x = 4,742,464,344.69
  5. Step 5: Solve for x
    x = 4,742,464,344.69/79,199.83
  6. Step 6: Final answer
    x = 59,879.73

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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.