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Finding the Fourth Proportional to 76,495.86, 114,646.32 and 43,234.43

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Solution

The fourth proportional to 76,495.86, 114,646.32 and 43,234.43 is: 64,796.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,495.86 : 114,646.32 = 43,234.43 : x
  2. Step 2: Convert to fraction form
    76,495.86/114,646.32 = 43,234.43/x
  3. Step 3: Cross multiply
    76,495.86x = 114,646.32 × 43,234.43
  4. Step 4: Simplify right side
    76,495.86x = 4,956,667,723.57
  5. Step 5: Solve for x
    x = 4,956,667,723.57/76,495.86
  6. Step 6: Final answer
    x = 64,796.55

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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.