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Finding the Fourth Proportional to 80,066.91, 120,086.70 and 26,752.86

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Solution

The fourth proportional to 80,066.91, 120,086.70 and 26,752.86 is: 40,124.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,066.91 : 120,086.70 = 26,752.86 : x
  2. Step 2: Convert to fraction form
    80,066.91/120,086.70 = 26,752.86/x
  3. Step 3: Cross multiply
    80,066.91x = 120,086.70 × 26,752.86
  4. Step 4: Simplify right side
    80,066.91x = 3,212,662,672.96
  5. Step 5: Solve for x
    x = 3,212,662,672.96/80,066.91
  6. Step 6: Final answer
    x = 40,124.72

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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.