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Finding the Fourth Proportional to 80,518.59, 120,714.37 and 50,873.94

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Solution

The fourth proportional to 80,518.59, 120,714.37 and 50,873.94 is: 76,270.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,518.59 : 120,714.37 = 50,873.94 : x
  2. Step 2: Convert to fraction form
    80,518.59/120,714.37 = 50,873.94/x
  3. Step 3: Cross multiply
    80,518.59x = 120,714.37 × 50,873.94
  4. Step 4: Simplify right side
    80,518.59x = 6,141,215,489.33
  5. Step 5: Solve for x
    x = 6,141,215,489.33/80,518.59
  6. Step 6: Final answer
    x = 76,270.78

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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.