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Finding the Fourth Proportional to 251,311.76, 376,755.68 and 109,049.82

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Solution

The fourth proportional to 251,311.76, 376,755.68 and 109,049.82 is: 163,482.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,311.76 : 376,755.68 = 109,049.82 : x
  2. Step 2: Convert to fraction form
    251,311.76/376,755.68 = 109,049.82/x
  3. Step 3: Cross multiply
    251,311.76x = 376,755.68 × 109,049.82
  4. Step 4: Simplify right side
    251,311.76x = 41,085,139,360.60
  5. Step 5: Solve for x
    x = 41,085,139,360.60/251,311.76
  6. Step 6: Final answer
    x = 163,482.76

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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.