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Finding the Fourth Proportional to 199,491.37, 275,297.97 and 127,871.33

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Solution

The fourth proportional to 199,491.37, 275,297.97 and 127,871.33 is: 176,462.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,491.37 : 275,297.97 = 127,871.33 : x
  2. Step 2: Convert to fraction form
    199,491.37/275,297.97 = 127,871.33/x
  3. Step 3: Cross multiply
    199,491.37x = 275,297.97 × 127,871.33
  4. Step 4: Simplify right side
    199,491.37x = 35,202,716,673.23
  5. Step 5: Solve for x
    x = 35,202,716,673.23/199,491.37
  6. Step 6: Final answer
    x = 176,462.36

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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.