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Finding the Fourth Proportional to 104,843.33, 144,689.87 and 78,955.52

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Solution

The fourth proportional to 104,843.33, 144,689.87 and 78,955.52 is: 108,963.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,843.33 : 144,689.87 = 78,955.52 : x
  2. Step 2: Convert to fraction form
    104,843.33/144,689.87 = 78,955.52/x
  3. Step 3: Cross multiply
    104,843.33x = 144,689.87 × 78,955.52
  4. Step 4: Simplify right side
    104,843.33x = 11,424,062,806.36
  5. Step 5: Solve for x
    x = 11,424,062,806.36/104,843.33
  6. Step 6: Final answer
    x = 108,963.19

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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.