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Finding the Fourth Proportional to 79,360.86, 109,517.64 and 43,551.42

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Solution

The fourth proportional to 79,360.86, 109,517.64 and 43,551.42 is: 60,100.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,360.86 : 109,517.64 = 43,551.42 : x
  2. Step 2: Convert to fraction form
    79,360.86/109,517.64 = 43,551.42/x
  3. Step 3: Cross multiply
    79,360.86x = 109,517.64 × 43,551.42
  4. Step 4: Simplify right side
    79,360.86x = 4,769,648,737.05
  5. Step 5: Solve for x
    x = 4,769,648,737.05/79,360.86
  6. Step 6: Final answer
    x = 60,100.77

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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.