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Finding the Fourth Proportional to 248,286.90, 372,433.82 and 70,793.98

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Solution

The fourth proportional to 248,286.90, 372,433.82 and 70,793.98 is: 106,191.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,286.90 : 372,433.82 = 70,793.98 : x
  2. Step 2: Convert to fraction form
    248,286.90/372,433.82 = 70,793.98/x
  3. Step 3: Cross multiply
    248,286.90x = 372,433.82 × 70,793.98
  4. Step 4: Simplify right side
    248,286.90x = 26,366,072,404.40
  5. Step 5: Solve for x
    x = 26,366,072,404.40/248,286.90
  6. Step 6: Final answer
    x = 106,191.96

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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.