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Finding the Fourth Proportional to 251,853.60, 376,905.60 and 173,121.60

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Solution

The fourth proportional to 251,853.60, 376,905.60 and 173,121.60 is: 259,081.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,853.60 : 376,905.60 = 173,121.60 : x
  2. Step 2: Convert to fraction form
    251,853.60/376,905.60 = 173,121.60/x
  3. Step 3: Cross multiply
    251,853.60x = 376,905.60 × 173,121.60
  4. Step 4: Simplify right side
    251,853.60x = 65,250,500,520.96
  5. Step 5: Solve for x
    x = 65,250,500,520.96/251,853.60
  6. Step 6: Final answer
    x = 259,081.07

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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.