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Finding the Fourth Proportional to 136,107.69, 204,203.08 and 69,594.54

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Solution

The fourth proportional to 136,107.69, 204,203.08 and 69,594.54 is: 104,413.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,107.69 : 204,203.08 = 69,594.54 : x
  2. Step 2: Convert to fraction form
    136,107.69/204,203.08 = 69,594.54/x
  3. Step 3: Cross multiply
    136,107.69x = 204,203.08 × 69,594.54
  4. Step 4: Simplify right side
    136,107.69x = 14,211,419,497.59
  5. Step 5: Solve for x
    x = 14,211,419,497.59/136,107.69
  6. Step 6: Final answer
    x = 104,413.05

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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.