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Finding the Fourth Proportional to 248,399.40, 372,647.70 and 106,244.40

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Solution

The fourth proportional to 248,399.40, 372,647.70 and 106,244.40 is: 159,387.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,399.40 : 372,647.70 = 106,244.40 : x
  2. Step 2: Convert to fraction form
    248,399.40/372,647.70 = 106,244.40/x
  3. Step 3: Cross multiply
    248,399.40x = 372,647.70 × 106,244.40
  4. Step 4: Simplify right side
    248,399.40x = 39,591,731,297.88
  5. Step 5: Solve for x
    x = 39,591,731,297.88/248,399.40
  6. Step 6: Final answer
    x = 159,387.39

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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.