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Finding the Fourth Proportional to 269,672.80, 404,120.40 and 119,790.40

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Solution

The fourth proportional to 269,672.80, 404,120.40 and 119,790.40 is: 179,512.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,672.80 : 404,120.40 = 119,790.40 : x
  2. Step 2: Convert to fraction form
    269,672.80/404,120.40 = 119,790.40/x
  3. Step 3: Cross multiply
    269,672.80x = 404,120.40 × 119,790.40
  4. Step 4: Simplify right side
    269,672.80x = 48,409,744,364.16
  5. Step 5: Solve for x
    x = 48,409,744,364.16/269,672.80
  6. Step 6: Final answer
    x = 179,512.89

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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.