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Finding the Fourth Proportional to 311,961.62, 467,975.22 and 101,615.96

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Solution

The fourth proportional to 311,961.62, 467,975.22 and 101,615.96 is: 152,434.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,961.62 : 467,975.22 = 101,615.96 : x
  2. Step 2: Convert to fraction form
    311,961.62/467,975.22 = 101,615.96/x
  3. Step 3: Cross multiply
    311,961.62x = 467,975.22 × 101,615.96
  4. Step 4: Simplify right side
    311,961.62x = 47,553,751,236.51
  5. Step 5: Solve for x
    x = 47,553,751,236.51/311,961.62
  6. Step 6: Final answer
    x = 152,434.62

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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.