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Finding the Fourth Proportional to 111,189.64, 166,782.99 and 26,950.53

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Solution

The fourth proportional to 111,189.64, 166,782.99 and 26,950.53 is: 40,425.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,189.64 : 166,782.99 = 26,950.53 : x
  2. Step 2: Convert to fraction form
    111,189.64/166,782.99 = 26,950.53/x
  3. Step 3: Cross multiply
    111,189.64x = 166,782.99 × 26,950.53
  4. Step 4: Simplify right side
    111,189.64x = 4,494,889,975.48
  5. Step 5: Solve for x
    x = 4,494,889,975.48/111,189.64
  6. Step 6: Final answer
    x = 40,425.44

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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.