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Finding the Fourth Proportional to 56,147.95, 84,179.80 and 33,956.79

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Solution

The fourth proportional to 56,147.95, 84,179.80 and 33,956.79 is: 50,909.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,147.95 : 84,179.80 = 33,956.79 : x
  2. Step 2: Convert to fraction form
    56,147.95/84,179.80 = 33,956.79/x
  3. Step 3: Cross multiply
    56,147.95x = 84,179.80 × 33,956.79
  4. Step 4: Simplify right side
    56,147.95x = 2,858,475,790.84
  5. Step 5: Solve for x
    x = 2,858,475,790.84/56,147.95
  6. Step 6: Final answer
    x = 50,909.71

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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.