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Finding the Fourth Proportional to 125,409.88, 188,112.84 and 50,528.26

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Solution

The fourth proportional to 125,409.88, 188,112.84 and 50,528.26 is: 75,791.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,409.88 : 188,112.84 = 50,528.26 : x
  2. Step 2: Convert to fraction form
    125,409.88/188,112.84 = 50,528.26/x
  3. Step 3: Cross multiply
    125,409.88x = 188,112.84 × 50,528.26
  4. Step 4: Simplify right side
    125,409.88x = 9,505,014,488.86
  5. Step 5: Solve for x
    x = 9,505,014,488.86/125,409.88
  6. Step 6: Final answer
    x = 75,791.59

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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.