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Finding the Fourth Proportional to 248,446.34, 372,684.12 and 70,939.70

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Solution

The fourth proportional to 248,446.34, 372,684.12 and 70,939.70 is: 106,413.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,446.34 : 372,684.12 = 70,939.70 : x
  2. Step 2: Convert to fraction form
    248,446.34/372,684.12 = 70,939.70/x
  3. Step 3: Cross multiply
    248,446.34x = 372,684.12 × 70,939.70
  4. Step 4: Simplify right side
    248,446.34x = 26,438,099,667.56
  5. Step 5: Solve for x
    x = 26,438,099,667.56/248,446.34
  6. Step 6: Final answer
    x = 106,413.72

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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.