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Finding the Fourth Proportional to 125,707.88, 188,524.91 and 36,940.28

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Solution

The fourth proportional to 125,707.88, 188,524.91 and 36,940.28 is: 55,399.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,707.88 : 188,524.91 = 36,940.28 : x
  2. Step 2: Convert to fraction form
    125,707.88/188,524.91 = 36,940.28/x
  3. Step 3: Cross multiply
    125,707.88x = 188,524.91 × 36,940.28
  4. Step 4: Simplify right side
    125,707.88x = 6,964,161,835.05
  5. Step 5: Solve for x
    x = 6,964,161,835.05/125,707.88
  6. Step 6: Final answer
    x = 55,399.57

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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.