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Finding the Fourth Proportional to 139,562.52, 192,528.60 and 82,933.80

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Solution

The fourth proportional to 139,562.52, 192,528.60 and 82,933.80 is: 114,408.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,562.52 : 192,528.60 = 82,933.80 : x
  2. Step 2: Convert to fraction form
    139,562.52/192,528.60 = 82,933.80/x
  3. Step 3: Cross multiply
    139,562.52x = 192,528.60 × 82,933.80
  4. Step 4: Simplify right side
    139,562.52x = 15,967,128,406.68
  5. Step 5: Solve for x
    x = 15,967,128,406.68/139,562.52
  6. Step 6: Final answer
    x = 114,408.43

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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.