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Finding the Fourth Proportional to 166,914.60, 250,371.90 and 67,090.20

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Solution

The fourth proportional to 166,914.60, 250,371.90 and 67,090.20 is: 100,635.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,914.60 : 250,371.90 = 67,090.20 : x
  2. Step 2: Convert to fraction form
    166,914.60/250,371.90 = 67,090.20/x
  3. Step 3: Cross multiply
    166,914.60x = 250,371.90 × 67,090.20
  4. Step 4: Simplify right side
    166,914.60x = 16,797,500,845.38
  5. Step 5: Solve for x
    x = 16,797,500,845.38/166,914.60
  6. Step 6: Final answer
    x = 100,635.30

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1.5x scale

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.