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Finding the Fourth Proportional to 366,906.45, 550,359.68 and 130,273.05

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Solution

The fourth proportional to 366,906.45, 550,359.68 and 130,273.05 is: 195,409.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,906.45 : 550,359.68 = 130,273.05 : x
  2. Step 2: Convert to fraction form
    366,906.45/550,359.68 = 130,273.05/x
  3. Step 3: Cross multiply
    366,906.45x = 550,359.68 × 130,273.05
  4. Step 4: Simplify right side
    366,906.45x = 71,697,033,459.26
  5. Step 5: Solve for x
    x = 71,697,033,459.26/366,906.45
  6. Step 6: Final answer
    x = 195,409.58

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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.