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Finding the Fourth Proportional to 404,273.25, 606,407.43 and 104,753.07

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Solution

The fourth proportional to 404,273.25, 606,407.43 and 104,753.07 is: 157,128.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,273.25 : 606,407.43 = 104,753.07 : x
  2. Step 2: Convert to fraction form
    404,273.25/606,407.43 = 104,753.07/x
  3. Step 3: Cross multiply
    404,273.25x = 606,407.43 × 104,753.07
  4. Step 4: Simplify right side
    404,273.25x = 63,523,039,963.31
  5. Step 5: Solve for x
    x = 63,523,039,963.31/404,273.25
  6. Step 6: Final answer
    x = 157,128.97

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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.