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Finding the Fourth Proportional to 320,706.63, 481,054.89 and 110,346.39

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Solution

The fourth proportional to 320,706.63, 481,054.89 and 110,346.39 is: 165,517.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,706.63 : 481,054.89 = 110,346.39 : x
  2. Step 2: Convert to fraction form
    320,706.63/481,054.89 = 110,346.39/x
  3. Step 3: Cross multiply
    320,706.63x = 481,054.89 × 110,346.39
  4. Step 4: Simplify right side
    320,706.63x = 53,082,670,503.35
  5. Step 5: Solve for x
    x = 53,082,670,503.35/320,706.63
  6. Step 6: Final answer
    x = 165,517.85

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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.