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Finding the Fourth Proportional to 263,305, 394,720.41 and 94,706.81

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Solution

The fourth proportional to 263,305, 394,720.41 and 94,706.81 is: 141,974.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,305 : 394,720.41 = 94,706.81 : x
  2. Step 2: Convert to fraction form
    263,305/394,720.41 = 94,706.81/x
  3. Step 3: Cross multiply
    263,305x = 394,720.41 × 94,706.81
  4. Step 4: Simplify right side
    263,305x = 37,382,710,872.99
  5. Step 5: Solve for x
    x = 37,382,710,872.99/263,305
  6. Step 6: Final answer
    x = 141,974.94

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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.