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Finding the Fourth Proportional to 111,232.60, 166,863.30 and 55,101.40

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Solution

The fourth proportional to 111,232.60, 166,863.30 and 55,101.40 is: 82,659.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,232.60 : 166,863.30 = 55,101.40 : x
  2. Step 2: Convert to fraction form
    111,232.60/166,863.30 = 55,101.40/x
  3. Step 3: Cross multiply
    111,232.60x = 166,863.30 × 55,101.40
  4. Step 4: Simplify right side
    111,232.60x = 9,194,401,438.62
  5. Step 5: Solve for x
    x = 9,194,401,438.62/111,232.60
  6. Step 6: Final answer
    x = 82,659.23

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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.