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Finding the Fourth Proportional to 248,442.80, 372,664.20 and 231,335.60

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Solution

The fourth proportional to 248,442.80, 372,664.20 and 231,335.60 is: 347,003.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,442.80 : 372,664.20 = 231,335.60 : x
  2. Step 2: Convert to fraction form
    248,442.80/372,664.20 = 231,335.60/x
  3. Step 3: Cross multiply
    248,442.80x = 372,664.20 × 231,335.60
  4. Step 4: Simplify right side
    248,442.80x = 86,210,496,305.52
  5. Step 5: Solve for x
    x = 86,210,496,305.52/248,442.80
  6. Step 6: Final answer
    x = 347,003.40

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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.