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Finding the Fourth Proportional to 166,993.40, 250,427.90 and 67,119.94

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Solution

The fourth proportional to 166,993.40, 250,427.90 and 67,119.94 is: 100,654.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,993.40 : 250,427.90 = 67,119.94 : x
  2. Step 2: Convert to fraction form
    166,993.40/250,427.90 = 67,119.94/x
  3. Step 3: Cross multiply
    166,993.40x = 250,427.90 × 67,119.94
  4. Step 4: Simplify right side
    166,993.40x = 16,808,706,103.16
  5. Step 5: Solve for x
    x = 16,808,706,103.16/166,993.40
  6. Step 6: Final answer
    x = 100,654.91

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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.