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Finding the Fourth Proportional to 248,441.40, 372,662.10 and 221,484.60

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Solution

The fourth proportional to 248,441.40, 372,662.10 and 221,484.60 is: 332,226.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,441.40 : 372,662.10 = 221,484.60 : x
  2. Step 2: Convert to fraction form
    248,441.40/372,662.10 = 221,484.60/x
  3. Step 3: Cross multiply
    248,441.40x = 372,662.10 × 221,484.60
  4. Step 4: Simplify right side
    248,441.40x = 82,538,916,153.66
  5. Step 5: Solve for x
    x = 82,538,916,153.66/248,441.40
  6. Step 6: Final answer
    x = 332,226.90

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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.