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Finding the Fourth Proportional to 303,964.98, 455,262.18 and 146,311.44

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Solution

The fourth proportional to 303,964.98, 455,262.18 and 146,311.44 is: 219,137.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,964.98 : 455,262.18 = 146,311.44 : x
  2. Step 2: Convert to fraction form
    303,964.98/455,262.18 = 146,311.44/x
  3. Step 3: Cross multiply
    303,964.98x = 455,262.18 × 146,311.44
  4. Step 4: Simplify right side
    303,964.98x = 66,610,065,133.34
  5. Step 5: Solve for x
    x = 66,610,065,133.34/303,964.98
  6. Step 6: Final answer
    x = 219,137.30

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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.