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Finding the Fourth Proportional to 135,107.58, 186,449.82 and 73,855.53

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Solution

The fourth proportional to 135,107.58, 186,449.82 and 73,855.53 is: 101,921.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,107.58 : 186,449.82 = 73,855.53 : x
  2. Step 2: Convert to fraction form
    135,107.58/186,449.82 = 73,855.53/x
  3. Step 3: Cross multiply
    135,107.58x = 186,449.82 × 73,855.53
  4. Step 4: Simplify right side
    135,107.58x = 13,770,350,274.50
  5. Step 5: Solve for x
    x = 13,770,350,274.50/135,107.58
  6. Step 6: Final answer
    x = 101,921.37

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1.5x scale

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.