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Finding the Fourth Proportional to 57,687.87, 79,645.31 and 44,233.26

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Solution

The fourth proportional to 57,687.87, 79,645.31 and 44,233.26 is: 61,069.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,687.87 : 79,645.31 = 44,233.26 : x
  2. Step 2: Convert to fraction form
    57,687.87/79,645.31 = 44,233.26/x
  3. Step 3: Cross multiply
    57,687.87x = 79,645.31 × 44,233.26
  4. Step 4: Simplify right side
    57,687.87x = 3,522,971,483.84
  5. Step 5: Solve for x
    x = 3,522,971,483.84/57,687.87
  6. Step 6: Final answer
    x = 61,069.54

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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.