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Finding the Fourth Proportional to 267,939.20, 401,908.80 and 110,280.80

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Solution

The fourth proportional to 267,939.20, 401,908.80 and 110,280.80 is: 165,421.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,939.20 : 401,908.80 = 110,280.80 : x
  2. Step 2: Convert to fraction form
    267,939.20/401,908.80 = 110,280.80/x
  3. Step 3: Cross multiply
    267,939.20x = 401,908.80 × 110,280.80
  4. Step 4: Simplify right side
    267,939.20x = 44,322,823,991.04
  5. Step 5: Solve for x
    x = 44,322,823,991.04/267,939.20
  6. Step 6: Final answer
    x = 165,421.20

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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.