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Finding the Fourth Proportional to 269,056.44, 403,589.52 and 69,381

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Solution

The fourth proportional to 269,056.44, 403,589.52 and 69,381 is: 104,072.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,056.44 : 403,589.52 = 69,381 : x
  2. Step 2: Convert to fraction form
    269,056.44/403,589.52 = 69,381/x
  3. Step 3: Cross multiply
    269,056.44x = 403,589.52 × 69,381
  4. Step 4: Simplify right side
    269,056.44x = 28,001,444,487.12
  5. Step 5: Solve for x
    x = 28,001,444,487.12/269,056.44
  6. Step 6: Final answer
    x = 104,072.75

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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.