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Finding the Fourth Proportional to 248,937.57, 373,289.58 and 91,055.61

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Solution

The fourth proportional to 248,937.57, 373,289.58 and 91,055.61 is: 136,540.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,937.57 : 373,289.58 = 91,055.61 : x
  2. Step 2: Convert to fraction form
    248,937.57/373,289.58 = 91,055.61/x
  3. Step 3: Cross multiply
    248,937.57x = 373,289.58 × 91,055.61
  4. Step 4: Simplify right side
    248,937.57x = 33,990,110,413.54
  5. Step 5: Solve for x
    x = 33,990,110,413.54/248,937.57
  6. Step 6: Final answer
    x = 136,540.70

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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.