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Finding the Fourth Proportional to 404,558.29, 606,936.21 and 134,685.91

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Solution

The fourth proportional to 404,558.29, 606,936.21 and 134,685.91 is: 202,061.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,558.29 : 606,936.21 = 134,685.91 : x
  2. Step 2: Convert to fraction form
    404,558.29/606,936.21 = 134,685.91/x
  3. Step 3: Cross multiply
    404,558.29x = 606,936.21 × 134,685.91
  4. Step 4: Simplify right side
    404,558.29x = 81,745,755,755.80
  5. Step 5: Solve for x
    x = 81,745,755,755.80/404,558.29
  6. Step 6: Final answer
    x = 202,061.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.