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Finding the Fourth Proportional to 235,087.30, 324,420.46 and 134,485.30

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Solution

The fourth proportional to 235,087.30, 324,420.46 and 134,485.30 is: 185,589.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,087.30 : 324,420.46 = 134,485.30 : x
  2. Step 2: Convert to fraction form
    235,087.30/324,420.46 = 134,485.30/x
  3. Step 3: Cross multiply
    235,087.30x = 324,420.46 × 134,485.30
  4. Step 4: Simplify right side
    235,087.30x = 43,629,782,889.24
  5. Step 5: Solve for x
    x = 43,629,782,889.24/235,087.30
  6. Step 6: Final answer
    x = 185,589.71

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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.