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Finding the Fourth Proportional to 267,266.60, 400,251.90 and 142,332.20

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Solution

The fourth proportional to 267,266.60, 400,251.90 and 142,332.20 is: 213,153.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,266.60 : 400,251.90 = 142,332.20 : x
  2. Step 2: Convert to fraction form
    267,266.60/400,251.90 = 142,332.20/x
  3. Step 3: Cross multiply
    267,266.60x = 400,251.90 × 142,332.20
  4. Step 4: Simplify right side
    267,266.60x = 56,968,733,481.18
  5. Step 5: Solve for x
    x = 56,968,733,481.18/267,266.60
  6. Step 6: Final answer
    x = 213,153.21

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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.