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Finding the Fourth Proportional to 135,217.01, 186,596.01 and 74,786.15

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Solution

The fourth proportional to 135,217.01, 186,596.01 and 74,786.15 is: 103,202.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,217.01 : 186,596.01 = 74,786.15 : x
  2. Step 2: Convert to fraction form
    135,217.01/186,596.01 = 74,786.15/x
  3. Step 3: Cross multiply
    135,217.01x = 186,596.01 × 74,786.15
  4. Step 4: Simplify right side
    135,217.01x = 13,954,797,193.26
  5. Step 5: Solve for x
    x = 13,954,797,193.26/135,217.01
  6. Step 6: Final answer
    x = 103,202.97

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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.