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Finding the Fourth Proportional to 269,723.40, 404,455.88 and 127,450.28

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Solution

The fourth proportional to 269,723.40, 404,455.88 and 127,450.28 is: 191,114.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,723.40 : 404,455.88 = 127,450.28 : x
  2. Step 2: Convert to fraction form
    269,723.40/404,455.88 = 127,450.28/x
  3. Step 3: Cross multiply
    269,723.40x = 404,455.88 × 127,450.28
  4. Step 4: Simplify right side
    269,723.40x = 51,548,015,153.65
  5. Step 5: Solve for x
    x = 51,548,015,153.65/269,723.40
  6. Step 6: Final answer
    x = 191,114.36

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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.