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Finding the Fourth Proportional to 248,940.80, 373,362.60 and 82,728.80

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Solution

The fourth proportional to 248,940.80, 373,362.60 and 82,728.80 is: 124,077.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,940.80 : 373,362.60 = 82,728.80 : x
  2. Step 2: Convert to fraction form
    248,940.80/373,362.60 = 82,728.80/x
  3. Step 3: Cross multiply
    248,940.80x = 373,362.60 × 82,728.80
  4. Step 4: Simplify right side
    248,940.80x = 30,887,839,862.88
  5. Step 5: Solve for x
    x = 30,887,839,862.88/248,940.80
  6. Step 6: Final answer
    x = 124,077.05

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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.