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Finding the Fourth Proportional to 56,405.54, 77,819.05 and 33,745.18

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Solution

The fourth proportional to 56,405.54, 77,819.05 and 33,745.18 is: 46,556.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,405.54 : 77,819.05 = 33,745.18 : x
  2. Step 2: Convert to fraction form
    56,405.54/77,819.05 = 33,745.18/x
  3. Step 3: Cross multiply
    56,405.54x = 77,819.05 × 33,745.18
  4. Step 4: Simplify right side
    56,405.54x = 2,626,017,849.68
  5. Step 5: Solve for x
    x = 2,626,017,849.68/56,405.54
  6. Step 6: Final answer
    x = 46,556.03

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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.