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Finding the Fourth Proportional to 171,373.20, 257,059.80 and 111,238.80

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Solution

The fourth proportional to 171,373.20, 257,059.80 and 111,238.80 is: 166,858.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,373.20 : 257,059.80 = 111,238.80 : x
  2. Step 2: Convert to fraction form
    171,373.20/257,059.80 = 111,238.80/x
  3. Step 3: Cross multiply
    171,373.20x = 257,059.80 × 111,238.80
  4. Step 4: Simplify right side
    171,373.20x = 28,595,023,680.24
  5. Step 5: Solve for x
    x = 28,595,023,680.24/171,373.20
  6. Step 6: Final answer
    x = 166,858.20

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1.5x scale

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.