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Finding the Fourth Proportional to 240,625.75, 360,938.63 and 74,413.75

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Solution

The fourth proportional to 240,625.75, 360,938.63 and 74,413.75 is: 111,620.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,625.75 : 360,938.63 = 74,413.75 : x
  2. Step 2: Convert to fraction form
    240,625.75/360,938.63 = 74,413.75/x
  3. Step 3: Cross multiply
    240,625.75x = 360,938.63 × 74,413.75
  4. Step 4: Simplify right side
    240,625.75x = 26,858,796,978.16
  5. Step 5: Solve for x
    x = 26,858,796,978.16/240,625.75
  6. Step 6: Final answer
    x = 111,620.63

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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.