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Finding the Fourth Proportional to 269,074.40, 403,611.60 and 82,061.60

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Solution

The fourth proportional to 269,074.40, 403,611.60 and 82,061.60 is: 123,092.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,074.40 : 403,611.60 = 82,061.60 : x
  2. Step 2: Convert to fraction form
    269,074.40/403,611.60 = 82,061.60/x
  3. Step 3: Cross multiply
    269,074.40x = 403,611.60 × 82,061.60
  4. Step 4: Simplify right side
    269,074.40x = 33,121,013,674.56
  5. Step 5: Solve for x
    x = 33,121,013,674.56/269,074.40
  6. Step 6: Final answer
    x = 123,092.40

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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.