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Finding the Fourth Proportional to 122,246.88, 183,136.08 and 82,735.84

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Solution

The fourth proportional to 122,246.88, 183,136.08 and 82,735.84 is: 123,945.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,246.88 : 183,136.08 = 82,735.84 : x
  2. Step 2: Convert to fraction form
    122,246.88/183,136.08 = 82,735.84/x
  3. Step 3: Cross multiply
    122,246.88x = 183,136.08 × 82,735.84
  4. Step 4: Simplify right side
    122,246.88x = 15,151,917,413.11
  5. Step 5: Solve for x
    x = 15,151,917,413.11/122,246.88
  6. Step 6: Final answer
    x = 123,945.23

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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.