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Finding the Fourth Proportional to 297,942.91, 411,160.86 and 161,976.51

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Solution

The fourth proportional to 297,942.91, 411,160.86 and 161,976.51 is: 223,527.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,942.91 : 411,160.86 = 161,976.51 : x
  2. Step 2: Convert to fraction form
    297,942.91/411,160.86 = 161,976.51/x
  3. Step 3: Cross multiply
    297,942.91x = 411,160.86 × 161,976.51
  4. Step 4: Simplify right side
    297,942.91x = 66,598,401,151.40
  5. Step 5: Solve for x
    x = 66,598,401,151.40/297,942.91
  6. Step 6: Final answer
    x = 223,527.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.