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Finding the Fourth Proportional to 267,643.22, 369,380.45 and 154,465.97

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Solution

The fourth proportional to 267,643.22, 369,380.45 and 154,465.97 is: 213,181.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,643.22 : 369,380.45 = 154,465.97 : x
  2. Step 2: Convert to fraction form
    267,643.22/369,380.45 = 154,465.97/x
  3. Step 3: Cross multiply
    267,643.22x = 369,380.45 × 154,465.97
  4. Step 4: Simplify right side
    267,643.22x = 57,056,706,889.05
  5. Step 5: Solve for x
    x = 57,056,706,889.05/267,643.22
  6. Step 6: Final answer
    x = 213,181.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.