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Finding the Fourth Proportional to 263,485.58, 363,610.31 and 142,626.49

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Solution

The fourth proportional to 263,485.58, 363,610.31 and 142,626.49 is: 196,824.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,485.58 : 363,610.31 = 142,626.49 : x
  2. Step 2: Convert to fraction form
    263,485.58/363,610.31 = 142,626.49/x
  3. Step 3: Cross multiply
    263,485.58x = 363,610.31 × 142,626.49
  4. Step 4: Simplify right side
    263,485.58x = 51,860,461,529.98
  5. Step 5: Solve for x
    x = 51,860,461,529.98/263,485.58
  6. Step 6: Final answer
    x = 196,824.67

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1.5x scale

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.