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Finding the Fourth Proportional to 351,837, 485,532.33 and 190,687.91

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Solution

The fourth proportional to 351,837, 485,532.33 and 190,687.91 is: 263,147.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,837 : 485,532.33 = 190,687.91 : x
  2. Step 2: Convert to fraction form
    351,837/485,532.33 = 190,687.91/x
  3. Step 3: Cross multiply
    351,837x = 485,532.33 × 190,687.91
  4. Step 4: Simplify right side
    351,837x = 92,585,142,102.39
  5. Step 5: Solve for x
    x = 92,585,142,102.39/351,837
  6. Step 6: Final answer
    x = 263,147.83

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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.