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Finding the Fourth Proportional to 115,791.39, 159,795.09 and 68,047.29

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Solution

The fourth proportional to 115,791.39, 159,795.09 and 68,047.29 is: 93,907.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,791.39 : 159,795.09 = 68,047.29 : x
  2. Step 2: Convert to fraction form
    115,791.39/159,795.09 = 68,047.29/x
  3. Step 3: Cross multiply
    115,791.39x = 159,795.09 × 68,047.29
  4. Step 4: Simplify right side
    115,791.39x = 10,873,622,829.81
  5. Step 5: Solve for x
    x = 10,873,622,829.81/115,791.39
  6. Step 6: Final answer
    x = 93,907.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.