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Finding the Fourth Proportional to 200,558.88, 276,771.30 and 109,918.44

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Solution

The fourth proportional to 200,558.88, 276,771.30 and 109,918.44 is: 151,687.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,558.88 : 276,771.30 = 109,918.44 : x
  2. Step 2: Convert to fraction form
    200,558.88/276,771.30 = 109,918.44/x
  3. Step 3: Cross multiply
    200,558.88x = 276,771.30 × 109,918.44
  4. Step 4: Simplify right side
    200,558.88x = 30,422,269,532.77
  5. Step 5: Solve for x
    x = 30,422,269,532.77/200,558.88
  6. Step 6: Final answer
    x = 151,687.47

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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.