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Finding the Fourth Proportional to 57,991.28, 80,066.34 and 44,538.39

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Solution

The fourth proportional to 57,991.28, 80,066.34 and 44,538.39 is: 61,492.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,991.28 : 80,066.34 = 44,538.39 : x
  2. Step 2: Convert to fraction form
    57,991.28/80,066.34 = 44,538.39/x
  3. Step 3: Cross multiply
    57,991.28x = 80,066.34 × 44,538.39
  4. Step 4: Simplify right side
    57,991.28x = 3,566,025,876.79
  5. Step 5: Solve for x
    x = 3,566,025,876.79/57,991.28
  6. Step 6: Final answer
    x = 61,492.46

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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.