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Finding the Fourth Proportional to 104,081.97, 143,627.60 and 61,055.51

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Solution

The fourth proportional to 104,081.97, 143,627.60 and 61,055.51 is: 84,253.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,081.97 : 143,627.60 = 61,055.51 : x
  2. Step 2: Convert to fraction form
    104,081.97/143,627.60 = 61,055.51/x
  3. Step 3: Cross multiply
    104,081.97x = 143,627.60 × 61,055.51
  4. Step 4: Simplify right side
    104,081.97x = 8,769,256,879.78
  5. Step 5: Solve for x
    x = 8,769,256,879.78/104,081.97
  6. Step 6: Final answer
    x = 84,253.37

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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.