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Finding the Fourth Proportional to 200,463.09, 276,639.05 and 119,890.61

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Solution

The fourth proportional to 200,463.09, 276,639.05 and 119,890.61 is: 165,449.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,463.09 : 276,639.05 = 119,890.61 : x
  2. Step 2: Convert to fraction form
    200,463.09/276,639.05 = 119,890.61/x
  3. Step 3: Cross multiply
    200,463.09x = 276,639.05 × 119,890.61
  4. Step 4: Simplify right side
    200,463.09x = 33,166,422,471.67
  5. Step 5: Solve for x
    x = 33,166,422,471.67/200,463.09
  6. Step 6: Final answer
    x = 165,449.02

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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.