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Finding the Fourth Proportional to 323,072.45, 484,596.68 and 130,940.25

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Solution

The fourth proportional to 323,072.45, 484,596.68 and 130,940.25 is: 196,405.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,072.45 : 484,596.68 = 130,940.25 : x
  2. Step 2: Convert to fraction form
    323,072.45/484,596.68 = 130,940.25/x
  3. Step 3: Cross multiply
    323,072.45x = 484,596.68 × 130,940.25
  4. Step 4: Simplify right side
    323,072.45x = 63,453,207,956.43
  5. Step 5: Solve for x
    x = 63,453,207,956.43/323,072.45
  6. Step 6: Final answer
    x = 196,405.51

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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.