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Finding the Fourth Proportional to 322,885.20, 484,327.80 and 98,245.20

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Solution

The fourth proportional to 322,885.20, 484,327.80 and 98,245.20 is: 147,367.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,885.20 : 484,327.80 = 98,245.20 : x
  2. Step 2: Convert to fraction form
    322,885.20/484,327.80 = 98,245.20/x
  3. Step 3: Cross multiply
    322,885.20x = 484,327.80 × 98,245.20
  4. Step 4: Simplify right side
    322,885.20x = 47,582,881,576.56
  5. Step 5: Solve for x
    x = 47,582,881,576.56/322,885.20
  6. Step 6: Final answer
    x = 147,367.80

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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.