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Finding the Fourth Proportional to 248,420.20, 372,644.70 and 70,940.20

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Solution

The fourth proportional to 248,420.20, 372,644.70 and 70,940.20 is: 106,414.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,420.20 : 372,644.70 = 70,940.20 : x
  2. Step 2: Convert to fraction form
    248,420.20/372,644.70 = 70,940.20/x
  3. Step 3: Cross multiply
    248,420.20x = 372,644.70 × 70,940.20
  4. Step 4: Simplify right side
    248,420.20x = 26,435,489,546.94
  5. Step 5: Solve for x
    x = 26,435,489,546.94/248,420.20
  6. Step 6: Final answer
    x = 106,414.41

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1.5x scale

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.