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Finding the Fourth Proportional to 613,122.37, 919,821.96 and 186,696.33

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Solution

The fourth proportional to 613,122.37, 919,821.96 and 186,696.33 is: 280,086.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,122.37 : 919,821.96 = 186,696.33 : x
  2. Step 2: Convert to fraction form
    613,122.37/919,821.96 = 186,696.33/x
  3. Step 3: Cross multiply
    613,122.37x = 919,821.96 × 186,696.33
  4. Step 4: Simplify right side
    613,122.37x = 171,727,384,222.75
  5. Step 5: Solve for x
    x = 171,727,384,222.75/613,122.37
  6. Step 6: Final answer
    x = 280,086.64

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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.