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Finding the Fourth Proportional to 263,736, 395,653.60 and 105,976.96

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Solution

The fourth proportional to 263,736, 395,653.60 and 105,976.96 is: 158,985.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,736 : 395,653.60 = 105,976.96 : x
  2. Step 2: Convert to fraction form
    263,736/395,653.60 = 105,976.96/x
  3. Step 3: Cross multiply
    263,736x = 395,653.60 × 105,976.96
  4. Step 4: Simplify right side
    263,736x = 41,930,165,741.06
  5. Step 5: Solve for x
    x = 41,930,165,741.06/263,736
  6. Step 6: Final answer
    x = 158,985.37

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1.5x scale

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.