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Finding the Fourth Proportional to 366,945.40, 550,418.10 and 156,993.40

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Solution

The fourth proportional to 366,945.40, 550,418.10 and 156,993.40 is: 235,490.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,945.40 : 550,418.10 = 156,993.40 : x
  2. Step 2: Convert to fraction form
    366,945.40/550,418.10 = 156,993.40/x
  3. Step 3: Cross multiply
    366,945.40x = 550,418.10 × 156,993.40
  4. Step 4: Simplify right side
    366,945.40x = 86,412,008,940.54
  5. Step 5: Solve for x
    x = 86,412,008,940.54/366,945.40
  6. Step 6: Final answer
    x = 235,490.10

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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.