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Finding the Fourth Proportional to 110,968.70, 166,494.95 and 66,626.37

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Solution

The fourth proportional to 110,968.70, 166,494.95 and 66,626.37 is: 99,964.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,968.70 : 166,494.95 = 66,626.37 : x
  2. Step 2: Convert to fraction form
    110,968.70/166,494.95 = 66,626.37/x
  3. Step 3: Cross multiply
    110,968.70x = 166,494.95 × 66,626.37
  4. Step 4: Simplify right side
    110,968.70x = 11,092,953,808.70
  5. Step 5: Solve for x
    x = 11,092,953,808.70/110,968.70
  6. Step 6: Final answer
    x = 99,964.71

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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.