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Finding the Fourth Proportional to 79,369.85, 109,526.87 and 43,559.93

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Solution

The fourth proportional to 79,369.85, 109,526.87 and 43,559.93 is: 60,110.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,369.85 : 109,526.87 = 43,559.93 : x
  2. Step 2: Convert to fraction form
    79,369.85/109,526.87 = 43,559.93/x
  3. Step 3: Cross multiply
    79,369.85x = 109,526.87 × 43,559.93
  4. Step 4: Simplify right side
    79,369.85x = 4,770,982,351.58
  5. Step 5: Solve for x
    x = 4,770,982,351.58/79,369.85
  6. Step 6: Final answer
    x = 60,110.77

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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.