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Finding the Fourth Proportional to 404,843.88, 607,266.58 and 105,323.97

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Solution

The fourth proportional to 404,843.88, 607,266.58 and 105,323.97 is: 157,986.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,843.88 : 607,266.58 = 105,323.97 : x
  2. Step 2: Convert to fraction form
    404,843.88/607,266.58 = 105,323.97/x
  3. Step 3: Cross multiply
    404,843.88x = 607,266.58 × 105,323.97
  4. Step 4: Simplify right side
    404,843.88x = 63,959,727,053.92
  5. Step 5: Solve for x
    x = 63,959,727,053.92/404,843.88
  6. Step 6: Final answer
    x = 157,986.15

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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.