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Finding the Fourth Proportional to 125,183.69, 187,791.45 and 39,764.07

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Solution

The fourth proportional to 125,183.69, 187,791.45 and 39,764.07 is: 59,651.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,183.69 : 187,791.45 = 39,764.07 : x
  2. Step 2: Convert to fraction form
    125,183.69/187,791.45 = 39,764.07/x
  3. Step 3: Cross multiply
    125,183.69x = 187,791.45 × 39,764.07
  4. Step 4: Simplify right side
    125,183.69x = 7,467,352,552.34
  5. Step 5: Solve for x
    x = 7,467,352,552.34/125,183.69
  6. Step 6: Final answer
    x = 59,651.16

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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.