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Finding the Fourth Proportional to 50,765.94, 76,079.05 and 43,230.51

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Solution

The fourth proportional to 50,765.94, 76,079.05 and 43,230.51 is: 64,786.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,765.94 : 76,079.05 = 43,230.51 : x
  2. Step 2: Convert to fraction form
    50,765.94/76,079.05 = 43,230.51/x
  3. Step 3: Cross multiply
    50,765.94x = 76,079.05 × 43,230.51
  4. Step 4: Simplify right side
    50,765.94x = 3,288,936,023.74
  5. Step 5: Solve for x
    x = 3,288,936,023.74/50,765.94
  6. Step 6: Final answer
    x = 64,786.27

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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.