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Finding the Fourth Proportional to 107,798.33, 161,685.15 and 28,906.43

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Solution

The fourth proportional to 107,798.33, 161,685.15 and 28,906.43 is: 43,356.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,798.33 : 161,685.15 = 28,906.43 : x
  2. Step 2: Convert to fraction form
    107,798.33/161,685.15 = 28,906.43/x
  3. Step 3: Cross multiply
    107,798.33x = 161,685.15 × 28,906.43
  4. Step 4: Simplify right side
    107,798.33x = 4,673,739,662.09
  5. Step 5: Solve for x
    x = 4,673,739,662.09/107,798.33
  6. Step 6: Final answer
    x = 43,356.33

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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.