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Finding the Fourth Proportional to 248,087,449.20, 372,131,173.80 and 248,087,449.20

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Solution

The fourth proportional to 248,087,449.20, 372,131,173.80 and 248,087,449.20 is: 372,131,173.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,087,449.20 : 372,131,173.80 = 248,087,449.20 : x
  2. Step 2: Convert to fraction form
    248,087,449.20/372,131,173.80 = 248,087,449.20/x
  3. Step 3: Cross multiply
    248,087,449.20x = 372,131,173.80 × 248,087,449.20
  4. Step 4: Simplify right side
    248,087,449.20x = 92,321,073,675,843,872
  5. Step 5: Solve for x
    x = 92,321,073,675,843,872/248,087,449.20
  6. Step 6: Final answer
    x = 372,131,173.80

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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.