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Finding the Fourth Proportional to 248,791.01, 343,060.25 and 168,078.38

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Solution

The fourth proportional to 248,791.01, 343,060.25 and 168,078.38 is: 231,764.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,791.01 : 343,060.25 = 168,078.38 : x
  2. Step 2: Convert to fraction form
    248,791.01/343,060.25 = 168,078.38/x
  3. Step 3: Cross multiply
    248,791.01x = 343,060.25 × 168,078.38
  4. Step 4: Simplify right side
    248,791.01x = 57,661,008,506.70
  5. Step 5: Solve for x
    x = 57,661,008,506.70/248,791.01
  6. Step 6: Final answer
    x = 231,764.84

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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.