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Finding the Fourth Proportional to 298,393.81, 447,586.31 and 73,754.26

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Solution

The fourth proportional to 298,393.81, 447,586.31 and 73,754.26 is: 110,630.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,393.81 : 447,586.31 = 73,754.26 : x
  2. Step 2: Convert to fraction form
    298,393.81/447,586.31 = 73,754.26/x
  3. Step 3: Cross multiply
    298,393.81x = 447,586.31 × 73,754.26
  4. Step 4: Simplify right side
    298,393.81x = 33,011,396,145.60
  5. Step 5: Solve for x
    x = 33,011,396,145.60/298,393.81
  6. Step 6: Final answer
    x = 110,630.30

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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.