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Finding the Fourth Proportional to 136,425.87, 204,260.94 and 69,722.37

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Solution

The fourth proportional to 136,425.87, 204,260.94 and 69,722.37 is: 104,390.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,425.87 : 204,260.94 = 69,722.37 : x
  2. Step 2: Convert to fraction form
    136,425.87/204,260.94 = 69,722.37/x
  3. Step 3: Cross multiply
    136,425.87x = 204,260.94 × 69,722.37
  4. Step 4: Simplify right side
    136,425.87x = 14,241,556,835.23
  5. Step 5: Solve for x
    x = 14,241,556,835.23/136,425.87
  6. Step 6: Final answer
    x = 104,390.44

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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.