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Finding the Fourth Proportional to 297,656.66, 410,759.30 and 161,687.56

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Solution

The fourth proportional to 297,656.66, 410,759.30 and 161,687.56 is: 223,125.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,656.66 : 410,759.30 = 161,687.56 : x
  2. Step 2: Convert to fraction form
    297,656.66/410,759.30 = 161,687.56/x
  3. Step 3: Cross multiply
    297,656.66x = 410,759.30 × 161,687.56
  4. Step 4: Simplify right side
    297,656.66x = 66,414,668,964.31
  5. Step 5: Solve for x
    x = 66,414,668,964.31/297,656.66
  6. Step 6: Final answer
    x = 223,125.09

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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.