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Finding the Fourth Proportional to 125,236.87, 187,879.91 and 46,351.78

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Solution

The fourth proportional to 125,236.87, 187,879.91 and 46,351.78 is: 69,536.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,236.87 : 187,879.91 = 46,351.78 : x
  2. Step 2: Convert to fraction form
    125,236.87/187,879.91 = 46,351.78/x
  3. Step 3: Cross multiply
    125,236.87x = 187,879.91 × 46,351.78
  4. Step 4: Simplify right side
    125,236.87x = 8,708,567,553.28
  5. Step 5: Solve for x
    x = 8,708,567,553.28/125,236.87
  6. Step 6: Final answer
    x = 69,536.77

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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.