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Finding the Fourth Proportional to 281,027.13, 421,245.45 and 174,410.88

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Solution

The fourth proportional to 281,027.13, 421,245.45 and 174,410.88 is: 261,433.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,027.13 : 421,245.45 = 174,410.88 : x
  2. Step 2: Convert to fraction form
    281,027.13/421,245.45 = 174,410.88/x
  3. Step 3: Cross multiply
    281,027.13x = 421,245.45 × 174,410.88
  4. Step 4: Simplify right side
    281,027.13x = 73,469,789,630.50
  5. Step 5: Solve for x
    x = 73,469,789,630.50/281,027.13
  6. Step 6: Final answer
    x = 261,433.09

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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.