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Finding the Fourth Proportional to 267,114.80, 400,672.20 and 178,079.60

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Solution

The fourth proportional to 267,114.80, 400,672.20 and 178,079.60 is: 267,119.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,114.80 : 400,672.20 = 178,079.60 : x
  2. Step 2: Convert to fraction form
    267,114.80/400,672.20 = 178,079.60/x
  3. Step 3: Cross multiply
    267,114.80x = 400,672.20 × 178,079.60
  4. Step 4: Simplify right side
    267,114.80x = 71,351,545,107.12
  5. Step 5: Solve for x
    x = 71,351,545,107.12/267,114.80
  6. Step 6: Final answer
    x = 267,119.40

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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.