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Finding the Fourth Proportional to 379,126.82, 568,532.12 and 154,334.67

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Solution

The fourth proportional to 379,126.82, 568,532.12 and 154,334.67 is: 231,437.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,126.82 : 568,532.12 = 154,334.67 : x
  2. Step 2: Convert to fraction form
    379,126.82/568,532.12 = 154,334.67/x
  3. Step 3: Cross multiply
    379,126.82x = 568,532.12 × 154,334.67
  4. Step 4: Simplify right side
    379,126.82x = 87,744,216,352.93
  5. Step 5: Solve for x
    x = 87,744,216,352.93/379,126.82
  6. Step 6: Final answer
    x = 231,437.64

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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.