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Finding the Fourth Proportional to 105,774.67, 158,709.39 and 57,759.07

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Solution

The fourth proportional to 105,774.67, 158,709.39 and 57,759.07 is: 86,664.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,774.67 : 158,709.39 = 57,759.07 : x
  2. Step 2: Convert to fraction form
    105,774.67/158,709.39 = 57,759.07/x
  3. Step 3: Cross multiply
    105,774.67x = 158,709.39 × 57,759.07
  4. Step 4: Simplify right side
    105,774.67x = 9,166,906,766.67
  5. Step 5: Solve for x
    x = 9,166,906,766.67/105,774.67
  6. Step 6: Final answer
    x = 86,664.48

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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.