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Finding the Fourth Proportional to 325,491.21, 488,306.53 and 100,846.67

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Solution

The fourth proportional to 325,491.21, 488,306.53 and 100,846.67 is: 151,291.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,491.21 : 488,306.53 = 100,846.67 : x
  2. Step 2: Convert to fraction form
    325,491.21/488,306.53 = 100,846.67/x
  3. Step 3: Cross multiply
    325,491.21x = 488,306.53 × 100,846.67
  4. Step 4: Simplify right side
    325,491.21x = 49,244,087,353.74
  5. Step 5: Solve for x
    x = 49,244,087,353.74/325,491.21
  6. Step 6: Final answer
    x = 151,291.60

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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.