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Finding the Fourth Proportional to 252,975.82, 349,076.91 and 139,791.82

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Solution

The fourth proportional to 252,975.82, 349,076.91 and 139,791.82 is: 192,896.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,975.82 : 349,076.91 = 139,791.82 : x
  2. Step 2: Convert to fraction form
    252,975.82/349,076.91 = 139,791.82/x
  3. Step 3: Cross multiply
    252,975.82x = 349,076.91 × 139,791.82
  4. Step 4: Simplify right side
    252,975.82x = 48,798,096,568.88
  5. Step 5: Solve for x
    x = 48,798,096,568.88/252,975.82
  6. Step 6: Final answer
    x = 192,896.29

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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.