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Finding the Fourth Proportional to 171,630.60, 257,100.30 and 119,099.40

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Solution

The fourth proportional to 171,630.60, 257,100.30 and 119,099.40 is: 178,409.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,630.60 : 257,100.30 = 119,099.40 : x
  2. Step 2: Convert to fraction form
    171,630.60/257,100.30 = 119,099.40/x
  3. Step 3: Cross multiply
    171,630.60x = 257,100.30 × 119,099.40
  4. Step 4: Simplify right side
    171,630.60x = 30,620,491,469.82
  5. Step 5: Solve for x
    x = 30,620,491,469.82/171,630.60
  6. Step 6: Final answer
    x = 178,409.28

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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.