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Finding the Fourth Proportional to 188,982.79, 260,796.26 and 104,099.87

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Solution

The fourth proportional to 188,982.79, 260,796.26 and 104,099.87 is: 143,657.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,982.79 : 260,796.26 = 104,099.87 : x
  2. Step 2: Convert to fraction form
    188,982.79/260,796.26 = 104,099.87/x
  3. Step 3: Cross multiply
    188,982.79x = 260,796.26 × 104,099.87
  4. Step 4: Simplify right side
    188,982.79x = 27,148,856,762.49
  5. Step 5: Solve for x
    x = 27,148,856,762.49/188,982.79
  6. Step 6: Final answer
    x = 143,657.83

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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.