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Finding the Fourth Proportional to 110,958.40, 166,437.60 and 66,562.30

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Solution

The fourth proportional to 110,958.40, 166,437.60 and 66,562.30 is: 99,843.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,958.40 : 166,437.60 = 66,562.30 : x
  2. Step 2: Convert to fraction form
    110,958.40/166,437.60 = 66,562.30/x
  3. Step 3: Cross multiply
    110,958.40x = 166,437.60 × 66,562.30
  4. Step 4: Simplify right side
    110,958.40x = 11,078,469,462.48
  5. Step 5: Solve for x
    x = 11,078,469,462.48/110,958.40
  6. Step 6: Final answer
    x = 99,843.45

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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.