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Finding the Fourth Proportional to 408,969.04, 613,476.46 and 124,668.84

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Solution

The fourth proportional to 408,969.04, 613,476.46 and 124,668.84 is: 187,010.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,969.04 : 613,476.46 = 124,668.84 : x
  2. Step 2: Convert to fraction form
    408,969.04/613,476.46 = 124,668.84/x
  3. Step 3: Cross multiply
    408,969.04x = 613,476.46 × 124,668.84
  4. Step 4: Simplify right side
    408,969.04x = 76,481,398,635.51
  5. Step 5: Solve for x
    x = 76,481,398,635.51/408,969.04
  6. Step 6: Final answer
    x = 187,010.24

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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.