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Finding the Fourth Proportional to 107,843.81, 161,766.75 and 28,958.04

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Solution

The fourth proportional to 107,843.81, 161,766.75 and 28,958.04 is: 43,437.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,843.81 : 161,766.75 = 28,958.04 : x
  2. Step 2: Convert to fraction form
    107,843.81/161,766.75 = 28,958.04/x
  3. Step 3: Cross multiply
    107,843.81x = 161,766.75 × 28,958.04
  4. Step 4: Simplify right side
    107,843.81x = 4,684,448,017.17
  5. Step 5: Solve for x
    x = 4,684,448,017.17/107,843.81
  6. Step 6: Final answer
    x = 43,437.34

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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.