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Finding the Fourth Proportional to 269,081.80, 403,393.52 and 119,240.40

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Solution

The fourth proportional to 269,081.80, 403,393.52 and 119,240.40 is: 178,759.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,081.80 : 403,393.52 = 119,240.40 : x
  2. Step 2: Convert to fraction form
    269,081.80/403,393.52 = 119,240.40/x
  3. Step 3: Cross multiply
    269,081.80x = 403,393.52 × 119,240.40
  4. Step 4: Simplify right side
    269,081.80x = 48,100,805,822.31
  5. Step 5: Solve for x
    x = 48,100,805,822.31/269,081.80
  6. Step 6: Final answer
    x = 178,759.05

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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.