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Finding the Fourth Proportional to 201,114.56, 301,672.11 and 85,679.30

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Solution

The fourth proportional to 201,114.56, 301,672.11 and 85,679.30 is: 128,519.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,114.56 : 301,672.11 = 85,679.30 : x
  2. Step 2: Convert to fraction form
    201,114.56/301,672.11 = 85,679.30/x
  3. Step 3: Cross multiply
    201,114.56x = 301,672.11 × 85,679.30
  4. Step 4: Simplify right side
    201,114.56x = 25,847,056,289.80
  5. Step 5: Solve for x
    x = 25,847,056,289.80/201,114.56
  6. Step 6: Final answer
    x = 128,519.07

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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.