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Finding the Fourth Proportional to 321,576.56, 482,364.88 and 111,099.68

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Solution

The fourth proportional to 321,576.56, 482,364.88 and 111,099.68 is: 166,649.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,576.56 : 482,364.88 = 111,099.68 : x
  2. Step 2: Convert to fraction form
    321,576.56/482,364.88 = 111,099.68/x
  3. Step 3: Cross multiply
    321,576.56x = 482,364.88 × 111,099.68
  4. Step 4: Simplify right side
    321,576.56x = 53,590,583,811.24
  5. Step 5: Solve for x
    x = 53,590,583,811.24/321,576.56
  6. Step 6: Final answer
    x = 166,649.53

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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.