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Finding the Fourth Proportional to 127,993.86, 192,027.69 and 39,260.43

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Solution

The fourth proportional to 127,993.86, 192,027.69 and 39,260.43 is: 58,901.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,993.86 : 192,027.69 = 39,260.43 : x
  2. Step 2: Convert to fraction form
    127,993.86/192,027.69 = 39,260.43/x
  3. Step 3: Cross multiply
    127,993.86x = 192,027.69 × 39,260.43
  4. Step 4: Simplify right side
    127,993.86x = 7,539,089,681.31
  5. Step 5: Solve for x
    x = 7,539,089,681.31/127,993.86
  6. Step 6: Final answer
    x = 58,901.96

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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.