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Finding the Fourth Proportional to 200,548.54, 276,882.79 and 129,052.81

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Solution

The fourth proportional to 200,548.54, 276,882.79 and 129,052.81 is: 178,173.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,548.54 : 276,882.79 = 129,052.81 : x
  2. Step 2: Convert to fraction form
    200,548.54/276,882.79 = 129,052.81/x
  3. Step 3: Cross multiply
    200,548.54x = 276,882.79 × 129,052.81
  4. Step 4: Simplify right side
    200,548.54x = 35,732,500,383.09
  5. Step 5: Solve for x
    x = 35,732,500,383.09/200,548.54
  6. Step 6: Final answer
    x = 178,173.83

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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.