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Finding the Fourth Proportional to 265,189.98, 397,745.46 and 87,697.92

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Solution

The fourth proportional to 265,189.98, 397,745.46 and 87,697.92 is: 131,533.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,189.98 : 397,745.46 = 87,697.92 : x
  2. Step 2: Convert to fraction form
    265,189.98/397,745.46 = 87,697.92/x
  3. Step 3: Cross multiply
    265,189.98x = 397,745.46 × 87,697.92
  4. Step 4: Simplify right side
    265,189.98x = 34,881,449,531.44
  5. Step 5: Solve for x
    x = 34,881,449,531.44/265,189.98
  6. Step 6: Final answer
    x = 131,533.81

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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.