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Finding the Fourth Proportional to 76,601.96, 105,710.44 and 43,067.96

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Solution

The fourth proportional to 76,601.96, 105,710.44 and 43,067.96 is: 59,433.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,601.96 : 105,710.44 = 43,067.96 : x
  2. Step 2: Convert to fraction form
    76,601.96/105,710.44 = 43,067.96/x
  3. Step 3: Cross multiply
    76,601.96x = 105,710.44 × 43,067.96
  4. Step 4: Simplify right side
    76,601.96x = 4,552,733,001.50
  5. Step 5: Solve for x
    x = 4,552,733,001.50/76,601.96
  6. Step 6: Final answer
    x = 59,433.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.