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Finding the Fourth Proportional to 171,109.20, 257,101.20 and 151,863.60

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Solution

The fourth proportional to 171,109.20, 257,101.20 and 151,863.60 is: 228,183.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,109.20 : 257,101.20 = 151,863.60 : x
  2. Step 2: Convert to fraction form
    171,109.20/257,101.20 = 151,863.60/x
  3. Step 3: Cross multiply
    171,109.20x = 257,101.20 × 151,863.60
  4. Step 4: Simplify right side
    171,109.20x = 39,044,313,796.32
  5. Step 5: Solve for x
    x = 39,044,313,796.32/171,109.20
  6. Step 6: Final answer
    x = 228,183.60

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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.