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Finding the Fourth Proportional to 200,100.78, 276,163.02 and 115,216.02

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Solution

The fourth proportional to 200,100.78, 276,163.02 and 115,216.02 is: 159,011.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,100.78 : 276,163.02 = 115,216.02 : x
  2. Step 2: Convert to fraction form
    200,100.78/276,163.02 = 115,216.02/x
  3. Step 3: Cross multiply
    200,100.78x = 276,163.02 × 115,216.02
  4. Step 4: Simplify right side
    200,100.78x = 31,818,404,035.58
  5. Step 5: Solve for x
    x = 31,818,404,035.58/200,100.78
  6. Step 6: Final answer
    x = 159,011.89

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.