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Finding the Fourth Proportional to 269,417.94, 404,376.18 and 136,391.64

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Solution

The fourth proportional to 269,417.94, 404,376.18 and 136,391.64 is: 204,713.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,417.94 : 404,376.18 = 136,391.64 : x
  2. Step 2: Convert to fraction form
    269,417.94/404,376.18 = 136,391.64/x
  3. Step 3: Cross multiply
    269,417.94x = 404,376.18 × 136,391.64
  4. Step 4: Simplify right side
    269,417.94x = 55,153,530,367.14
  5. Step 5: Solve for x
    x = 55,153,530,367.14/269,417.94
  6. Step 6: Final answer
    x = 204,713.65

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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.