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Finding the Fourth Proportional to 84,672.51, 127,067.09 and 29,268.51

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Solution

The fourth proportional to 84,672.51, 127,067.09 and 29,268.51 is: 43,922.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,672.51 : 127,067.09 = 29,268.51 : x
  2. Step 2: Convert to fraction form
    84,672.51/127,067.09 = 29,268.51/x
  3. Step 3: Cross multiply
    84,672.51x = 127,067.09 × 29,268.51
  4. Step 4: Simplify right side
    84,672.51x = 3,719,064,394.34
  5. Step 5: Solve for x
    x = 3,719,064,394.34/84,672.51
  6. Step 6: Final answer
    x = 43,922.93

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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.