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Finding the Fourth Proportional to 325,997.87, 488,895.53 and 157,413.38

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Solution

The fourth proportional to 325,997.87, 488,895.53 and 157,413.38 is: 236,071.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,997.87 : 488,895.53 = 157,413.38 : x
  2. Step 2: Convert to fraction form
    325,997.87/488,895.53 = 157,413.38/x
  3. Step 3: Cross multiply
    325,997.87x = 488,895.53 × 157,413.38
  4. Step 4: Simplify right side
    325,997.87x = 76,958,694,612.65
  5. Step 5: Solve for x
    x = 76,958,694,612.65/325,997.87
  6. Step 6: Final answer
    x = 236,071.16

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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.