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Finding the Fourth Proportional to 251,230.98, 376,634.61 and 108,969.15

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Solution

The fourth proportional to 251,230.98, 376,634.61 and 108,969.15 is: 163,361.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,230.98 : 376,634.61 = 108,969.15 : x
  2. Step 2: Convert to fraction form
    251,230.98/376,634.61 = 108,969.15/x
  3. Step 3: Cross multiply
    251,230.98x = 376,634.61 × 108,969.15
  4. Step 4: Simplify right side
    251,230.98x = 41,041,553,312.28
  5. Step 5: Solve for x
    x = 41,041,553,312.28/251,230.98
  6. Step 6: Final answer
    x = 163,361.83

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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.