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Finding the Fourth Proportional to 127,993.44, 192,011.28 and 39,238.08

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Solution

The fourth proportional to 127,993.44, 192,011.28 and 39,238.08 is: 58,863.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,993.44 : 192,011.28 = 39,238.08 : x
  2. Step 2: Convert to fraction form
    127,993.44/192,011.28 = 39,238.08/x
  3. Step 3: Cross multiply
    127,993.44x = 192,011.28 × 39,238.08
  4. Step 4: Simplify right side
    127,993.44x = 7,534,153,965.54
  5. Step 5: Solve for x
    x = 7,534,153,965.54/127,993.44
  6. Step 6: Final answer
    x = 58,863.59

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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.