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Finding the Fourth Proportional to 267,383.12, 401,164.02 and 87,476.80

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Solution

The fourth proportional to 267,383.12, 401,164.02 and 87,476.80 is: 131,244.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,383.12 : 401,164.02 = 87,476.80 : x
  2. Step 2: Convert to fraction form
    267,383.12/401,164.02 = 87,476.80/x
  3. Step 3: Cross multiply
    267,383.12x = 401,164.02 × 87,476.80
  4. Step 4: Simplify right side
    267,383.12x = 35,092,544,744.74
  5. Step 5: Solve for x
    x = 35,092,544,744.74/267,383.12
  6. Step 6: Final answer
    x = 131,244.43

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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.