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Finding the Fourth Proportional to 267,387.72, 368,959.97 and 159,918.54

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Solution

The fourth proportional to 267,387.72, 368,959.97 and 159,918.54 is: 220,666.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,387.72 : 368,959.97 = 159,918.54 : x
  2. Step 2: Convert to fraction form
    267,387.72/368,959.97 = 159,918.54/x
  3. Step 3: Cross multiply
    267,387.72x = 368,959.97 × 159,918.54
  4. Step 4: Simplify right side
    267,387.72x = 59,003,540,120.64
  5. Step 5: Solve for x
    x = 59,003,540,120.64/267,387.72
  6. Step 6: Final answer
    x = 220,666.60

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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.