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Finding the Fourth Proportional to 111,243.80, 166,749.06 and 52,029.56

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Solution

The fourth proportional to 111,243.80, 166,749.06 and 52,029.56 is: 77,989.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,243.80 : 166,749.06 = 52,029.56 : x
  2. Step 2: Convert to fraction form
    111,243.80/166,749.06 = 52,029.56/x
  3. Step 3: Cross multiply
    111,243.80x = 166,749.06 × 52,029.56
  4. Step 4: Simplify right side
    111,243.80x = 8,675,880,834.20
  5. Step 5: Solve for x
    x = 8,675,880,834.20/111,243.80
  6. Step 6: Final answer
    x = 77,989.79

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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.