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Finding the Fourth Proportional to 135,690.77, 203,556.20 and 46,920.44

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Solution

The fourth proportional to 135,690.77, 203,556.20 and 46,920.44 is: 70,387.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,690.77 : 203,556.20 = 46,920.44 : x
  2. Step 2: Convert to fraction form
    135,690.77/203,556.20 = 46,920.44/x
  3. Step 3: Cross multiply
    135,690.77x = 203,556.20 × 46,920.44
  4. Step 4: Simplify right side
    135,690.77x = 9,550,945,216.34
  5. Step 5: Solve for x
    x = 9,550,945,216.34/135,690.77
  6. Step 6: Final answer
    x = 70,387.58

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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.