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Finding the Fourth Proportional to 107,958.68, 149,052.31 and 67,727.60

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Solution

The fourth proportional to 107,958.68, 149,052.31 and 67,727.60 is: 93,507.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,958.68 : 149,052.31 = 67,727.60 : x
  2. Step 2: Convert to fraction form
    107,958.68/149,052.31 = 67,727.60/x
  3. Step 3: Cross multiply
    107,958.68x = 149,052.31 × 67,727.60
  4. Step 4: Simplify right side
    107,958.68x = 10,094,954,316.18
  5. Step 5: Solve for x
    x = 10,094,954,316.18/107,958.68
  6. Step 6: Final answer
    x = 93,507.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.