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Finding the Fourth Proportional to 57,381, 79,185.81 and 32,230.50

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Solution

The fourth proportional to 57,381, 79,185.81 and 32,230.50 is: 44,478.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,381 : 79,185.81 = 32,230.50 : x
  2. Step 2: Convert to fraction form
    57,381/79,185.81 = 32,230.50/x
  3. Step 3: Cross multiply
    57,381x = 79,185.81 × 32,230.50
  4. Step 4: Simplify right side
    57,381x = 2,552,198,249.21
  5. Step 5: Solve for x
    x = 2,552,198,249.21/57,381
  6. Step 6: Final answer
    x = 44,478.11

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.