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Finding the Fourth Proportional to 120,771.60, 181,200.60 and 50,672.40

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Solution

The fourth proportional to 120,771.60, 181,200.60 and 50,672.40 is: 76,026.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,771.60 : 181,200.60 = 50,672.40 : x
  2. Step 2: Convert to fraction form
    120,771.60/181,200.60 = 50,672.40/x
  3. Step 3: Cross multiply
    120,771.60x = 181,200.60 × 50,672.40
  4. Step 4: Simplify right side
    120,771.60x = 9,181,869,283.44
  5. Step 5: Solve for x
    x = 9,181,869,283.44/120,771.60
  6. Step 6: Final answer
    x = 76,026.73

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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.