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Finding the Fourth Proportional to 263,687.96, 395,675.95 and 111,861.58

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Solution

The fourth proportional to 263,687.96, 395,675.95 and 111,861.58 is: 167,853.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,687.96 : 395,675.95 = 111,861.58 : x
  2. Step 2: Convert to fraction form
    263,687.96/395,675.95 = 111,861.58/x
  3. Step 3: Cross multiply
    263,687.96x = 395,675.95 × 111,861.58
  4. Step 4: Simplify right side
    263,687.96x = 44,260,936,935.00
  5. Step 5: Solve for x
    x = 44,260,936,935.00/263,687.96
  6. Step 6: Final answer
    x = 167,853.46

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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.