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Finding the Fourth Proportional to 171,004.60, 256,506.90 and 161,819.20

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Solution

The fourth proportional to 171,004.60, 256,506.90 and 161,819.20 is: 242,728.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,004.60 : 256,506.90 = 161,819.20 : x
  2. Step 2: Convert to fraction form
    171,004.60/256,506.90 = 161,819.20/x
  3. Step 3: Cross multiply
    171,004.60x = 256,506.90 × 161,819.20
  4. Step 4: Simplify right side
    171,004.60x = 41,507,741,352.48
  5. Step 5: Solve for x
    x = 41,507,741,352.48/171,004.60
  6. Step 6: Final answer
    x = 242,728.80

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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.