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Finding the Fourth Proportional to 228,790.49, 343,185.73 and 79,034.45

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Solution

The fourth proportional to 228,790.49, 343,185.73 and 79,034.45 is: 118,551.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,790.49 : 343,185.73 = 79,034.45 : x
  2. Step 2: Convert to fraction form
    228,790.49/343,185.73 = 79,034.45/x
  3. Step 3: Cross multiply
    228,790.49x = 343,185.73 × 79,034.45
  4. Step 4: Simplify right side
    228,790.49x = 27,123,493,504.88
  5. Step 5: Solve for x
    x = 27,123,493,504.88/228,790.49
  6. Step 6: Final answer
    x = 118,551.67

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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.