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Finding the Fourth Proportional to 263,494.62, 395,315.51 and 105,833.79

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Solution

The fourth proportional to 263,494.62, 395,315.51 and 105,833.79 is: 158,780.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,494.62 : 395,315.51 = 105,833.79 : x
  2. Step 2: Convert to fraction form
    263,494.62/395,315.51 = 105,833.79/x
  3. Step 3: Cross multiply
    263,494.62x = 395,315.51 × 105,833.79
  4. Step 4: Simplify right side
    263,494.62x = 41,837,738,139.91
  5. Step 5: Solve for x
    x = 41,837,738,139.91/263,494.62
  6. Step 6: Final answer
    x = 158,780.24

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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.