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Finding the Fourth Proportional to 263,460.98, 395,189.84 and 85,968.11

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Solution

The fourth proportional to 263,460.98, 395,189.84 and 85,968.11 is: 128,951.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,460.98 : 395,189.84 = 85,968.11 : x
  2. Step 2: Convert to fraction form
    263,460.98/395,189.84 = 85,968.11/x
  3. Step 3: Cross multiply
    263,460.98x = 395,189.84 × 85,968.11
  4. Step 4: Simplify right side
    263,460.98x = 33,973,721,230.21
  5. Step 5: Solve for x
    x = 33,973,721,230.21/263,460.98
  6. Step 6: Final answer
    x = 128,951.63

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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.