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Finding the Fourth Proportional to 251,229.60, 376,261.20 and 171,914.40

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Solution

The fourth proportional to 251,229.60, 376,261.20 and 171,914.40 is: 257,472.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,229.60 : 376,261.20 = 171,914.40 : x
  2. Step 2: Convert to fraction form
    251,229.60/376,261.20 = 171,914.40/x
  3. Step 3: Cross multiply
    251,229.60x = 376,261.20 × 171,914.40
  4. Step 4: Simplify right side
    251,229.60x = 64,684,718,441.28
  5. Step 5: Solve for x
    x = 64,684,718,441.28/251,229.60
  6. Step 6: Final answer
    x = 257,472.52

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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.