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Finding the Fourth Proportional to 248,540.87, 372,813.74 and 71,046.65

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Solution

The fourth proportional to 248,540.87, 372,813.74 and 71,046.65 is: 106,570.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,540.87 : 372,813.74 = 71,046.65 : x
  2. Step 2: Convert to fraction form
    248,540.87/372,813.74 = 71,046.65/x
  3. Step 3: Cross multiply
    248,540.87x = 372,813.74 × 71,046.65
  4. Step 4: Simplify right side
    248,540.87x = 26,487,167,300.97
  5. Step 5: Solve for x
    x = 26,487,167,300.97/248,540.87
  6. Step 6: Final answer
    x = 106,570.67

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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.