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Finding the Fourth Proportional to 171,091.20, 257,074.20 and 151,845.60

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Solution

The fourth proportional to 171,091.20, 257,074.20 and 151,845.60 is: 228,156.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,091.20 : 257,074.20 = 151,845.60 : x
  2. Step 2: Convert to fraction form
    171,091.20/257,074.20 = 151,845.60/x
  3. Step 3: Cross multiply
    171,091.20x = 257,074.20 × 151,845.60
  4. Step 4: Simplify right side
    171,091.20x = 39,035,586,143.52
  5. Step 5: Solve for x
    x = 39,035,586,143.52/171,091.20
  6. Step 6: Final answer
    x = 228,156.60

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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.