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Finding the Fourth Proportional to 403,766.58, 605,744.06 and 133,874.98

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Solution

The fourth proportional to 403,766.58, 605,744.06 and 133,874.98 is: 200,843.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,766.58 : 605,744.06 = 133,874.98 : x
  2. Step 2: Convert to fraction form
    403,766.58/605,744.06 = 133,874.98/x
  3. Step 3: Cross multiply
    403,766.58x = 605,744.06 × 133,874.98
  4. Step 4: Simplify right side
    403,766.58x = 81,093,971,733.88
  5. Step 5: Solve for x
    x = 81,093,971,733.88/403,766.58
  6. Step 6: Final answer
    x = 200,843.69

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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.