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Finding the Fourth Proportional to 200,636.38, 276,832.68 and 136,114.39

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Solution

The fourth proportional to 200,636.38, 276,832.68 and 136,114.39 is: 187,806.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,636.38 : 276,832.68 = 136,114.39 : x
  2. Step 2: Convert to fraction form
    200,636.38/276,832.68 = 136,114.39/x
  3. Step 3: Cross multiply
    200,636.38x = 276,832.68 × 136,114.39
  4. Step 4: Simplify right side
    200,636.38x = 37,680,911,370.27
  5. Step 5: Solve for x
    x = 37,680,911,370.27/200,636.38
  6. Step 6: Final answer
    x = 187,806.97

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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.