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Finding the Fourth Proportional to 446,776.60, 670,251.30 and 131,243.80

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Solution

The fourth proportional to 446,776.60, 670,251.30 and 131,243.80 is: 196,891.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,776.60 : 670,251.30 = 131,243.80 : x
  2. Step 2: Convert to fraction form
    446,776.60/670,251.30 = 131,243.80/x
  3. Step 3: Cross multiply
    446,776.60x = 670,251.30 × 131,243.80
  4. Step 4: Simplify right side
    446,776.60x = 87,966,327,566.94
  5. Step 5: Solve for x
    x = 87,966,327,566.94/446,776.60
  6. Step 6: Final answer
    x = 196,891.08

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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.