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Finding the Fourth Proportional to 104,801.31, 144,624.94 and 57,054.56

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Solution

The fourth proportional to 104,801.31, 144,624.94 and 57,054.56 is: 78,734.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,801.31 : 144,624.94 = 57,054.56 : x
  2. Step 2: Convert to fraction form
    104,801.31/144,624.94 = 57,054.56/x
  3. Step 3: Cross multiply
    104,801.31x = 144,624.94 × 57,054.56
  4. Step 4: Simplify right side
    104,801.31x = 8,251,511,450.97
  5. Step 5: Solve for x
    x = 8,251,511,450.97/104,801.31
  6. Step 6: Final answer
    x = 78,734.81

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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.