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Finding the Fourth Proportional to 267,833.76, 401,553.81 and 127,690.80

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Solution

The fourth proportional to 267,833.76, 401,553.81 and 127,690.80 is: 191,442.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,833.76 : 401,553.81 = 127,690.80 : x
  2. Step 2: Convert to fraction form
    267,833.76/401,553.81 = 127,690.80/x
  3. Step 3: Cross multiply
    267,833.76x = 401,553.81 × 127,690.80
  4. Step 4: Simplify right side
    267,833.76x = 51,274,727,241.95
  5. Step 5: Solve for x
    x = 51,274,727,241.95/267,833.76
  6. Step 6: Final answer
    x = 191,442.36

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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.