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Finding the Fourth Proportional to 110,979.81, 166,462.43 and 47,797.38

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Solution

The fourth proportional to 110,979.81, 166,462.43 and 47,797.38 is: 71,692.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,979.81 : 166,462.43 = 47,797.38 : x
  2. Step 2: Convert to fraction form
    110,979.81/166,462.43 = 47,797.38/x
  3. Step 3: Cross multiply
    110,979.81x = 166,462.43 × 47,797.38
  4. Step 4: Simplify right side
    110,979.81x = 7,956,467,783.45
  5. Step 5: Solve for x
    x = 7,956,467,783.45/110,979.81
  6. Step 6: Final answer
    x = 71,692.93

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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.