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Finding the Fourth Proportional to 101,699.75, 140,350.42 and 63,481.93

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Solution

The fourth proportional to 101,699.75, 140,350.42 and 63,481.93 is: 87,608.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,699.75 : 140,350.42 = 63,481.93 : x
  2. Step 2: Convert to fraction form
    101,699.75/140,350.42 = 63,481.93/x
  3. Step 3: Cross multiply
    101,699.75x = 140,350.42 × 63,481.93
  4. Step 4: Simplify right side
    101,699.75x = 8,909,715,266.39
  5. Step 5: Solve for x
    x = 8,909,715,266.39/101,699.75
  6. Step 6: Final answer
    x = 87,608.03

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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.