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Finding the Fourth Proportional to 297,413.16, 445,186.62 and 156,745.32

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Solution

The fourth proportional to 297,413.16, 445,186.62 and 156,745.32 is: 234,626.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,413.16 : 445,186.62 = 156,745.32 : x
  2. Step 2: Convert to fraction form
    297,413.16/445,186.62 = 156,745.32/x
  3. Step 3: Cross multiply
    297,413.16x = 445,186.62 × 156,745.32
  4. Step 4: Simplify right side
    297,413.16x = 69,780,919,211.62
  5. Step 5: Solve for x
    x = 69,780,919,211.62/297,413.16
  6. Step 6: Final answer
    x = 234,626.20

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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.