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Finding the Fourth Proportional to 248,630.40, 372,945.60 and 108,662.40

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Solution

The fourth proportional to 248,630.40, 372,945.60 and 108,662.40 is: 162,993.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,630.40 : 372,945.60 = 108,662.40 : x
  2. Step 2: Convert to fraction form
    248,630.40/372,945.60 = 108,662.40/x
  3. Step 3: Cross multiply
    248,630.40x = 372,945.60 × 108,662.40
  4. Step 4: Simplify right side
    248,630.40x = 40,525,163,965.44
  5. Step 5: Solve for x
    x = 40,525,163,965.44/248,630.40
  6. Step 6: Final answer
    x = 162,993.60

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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.