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Finding the Fourth Proportional to 551,362.20, 827,187.30 and 177,394.20

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Solution

The fourth proportional to 551,362.20, 827,187.30 and 177,394.20 is: 266,137.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,362.20 : 827,187.30 = 177,394.20 : x
  2. Step 2: Convert to fraction form
    551,362.20/827,187.30 = 177,394.20/x
  3. Step 3: Cross multiply
    551,362.20x = 827,187.30 × 177,394.20
  4. Step 4: Simplify right side
    551,362.20x = 146,738,229,333.66
  5. Step 5: Solve for x
    x = 146,738,229,333.66/551,362.20
  6. Step 6: Final answer
    x = 266,137.63

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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.