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Finding the Fourth Proportional to 188,835.60, 260,600.56 and 103,960.56

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Solution

The fourth proportional to 188,835.60, 260,600.56 and 103,960.56 is: 143,469.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,835.60 : 260,600.56 = 103,960.56 : x
  2. Step 2: Convert to fraction form
    188,835.60/260,600.56 = 103,960.56/x
  3. Step 3: Cross multiply
    188,835.60x = 260,600.56 × 103,960.56
  4. Step 4: Simplify right side
    188,835.60x = 27,092,180,153.91
  5. Step 5: Solve for x
    x = 27,092,180,153.91/188,835.60
  6. Step 6: Final answer
    x = 143,469.66

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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.