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Finding the Fourth Proportional to 79,693.77, 109,983.12 and 44,771.27

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Solution

The fourth proportional to 79,693.77, 109,983.12 and 44,771.27 is: 61,787.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,693.77 : 109,983.12 = 44,771.27 : x
  2. Step 2: Convert to fraction form
    79,693.77/109,983.12 = 44,771.27/x
  3. Step 3: Cross multiply
    79,693.77x = 109,983.12 × 44,771.27
  4. Step 4: Simplify right side
    79,693.77x = 4,924,083,243.15
  5. Step 5: Solve for x
    x = 4,924,083,243.15/79,693.77
  6. Step 6: Final answer
    x = 61,787.55

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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.