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Finding the Fourth Proportional to 311,960.99, 467,974.28 and 101,615.33

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Solution

The fourth proportional to 311,960.99, 467,974.28 and 101,615.33 is: 152,433.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,960.99 : 467,974.28 = 101,615.33 : x
  2. Step 2: Convert to fraction form
    311,960.99/467,974.28 = 101,615.33/x
  3. Step 3: Cross multiply
    311,960.99x = 467,974.28 × 101,615.33
  4. Step 4: Simplify right side
    311,960.99x = 47,553,358,553.84
  5. Step 5: Solve for x
    x = 47,553,358,553.84/311,960.99
  6. Step 6: Final answer
    x = 152,433.67

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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.