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Finding the Fourth Proportional to 135,960.60, 203,970.08 and 57,029.34

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Solution

The fourth proportional to 135,960.60, 203,970.08 and 57,029.34 is: 85,556.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,960.60 : 203,970.08 = 57,029.34 : x
  2. Step 2: Convert to fraction form
    135,960.60/203,970.08 = 57,029.34/x
  3. Step 3: Cross multiply
    135,960.60x = 203,970.08 × 57,029.34
  4. Step 4: Simplify right side
    135,960.60x = 11,632,279,042.15
  5. Step 5: Solve for x
    x = 11,632,279,042.15/135,960.60
  6. Step 6: Final answer
    x = 85,556.25

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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.