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Finding the Fourth Proportional to 139,241.52, 208,877.33 and 44,438.49

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Solution

The fourth proportional to 139,241.52, 208,877.33 and 44,438.49 is: 66,662.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,241.52 : 208,877.33 = 44,438.49 : x
  2. Step 2: Convert to fraction form
    139,241.52/208,877.33 = 44,438.49/x
  3. Step 3: Cross multiply
    139,241.52x = 208,877.33 × 44,438.49
  4. Step 4: Simplify right side
    139,241.52x = 9,282,193,140.43
  5. Step 5: Solve for x
    x = 9,282,193,140.43/139,241.52
  6. Step 6: Final answer
    x = 66,662.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.