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Finding the Fourth Proportional to 79,596.86, 109,841.87 and 43,786.08

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Solution

The fourth proportional to 79,596.86, 109,841.87 and 43,786.08 is: 60,423.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,596.86 : 109,841.87 = 43,786.08 : x
  2. Step 2: Convert to fraction form
    79,596.86/109,841.87 = 43,786.08/x
  3. Step 3: Cross multiply
    79,596.86x = 109,841.87 × 43,786.08
  4. Step 4: Simplify right side
    79,596.86x = 4,809,545,016.63
  5. Step 5: Solve for x
    x = 4,809,545,016.63/79,596.86
  6. Step 6: Final answer
    x = 60,423.81

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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.