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Finding the Fourth Proportional to 270,186.52, 405,287.98 and 92,690.96

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Solution

The fourth proportional to 270,186.52, 405,287.98 and 92,690.96 is: 139,039.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,186.52 : 405,287.98 = 92,690.96 : x
  2. Step 2: Convert to fraction form
    270,186.52/405,287.98 = 92,690.96/x
  3. Step 3: Cross multiply
    270,186.52x = 405,287.98 × 92,690.96
  4. Step 4: Simplify right side
    270,186.52x = 37,566,531,942.66
  5. Step 5: Solve for x
    x = 37,566,531,942.66/270,186.52
  6. Step 6: Final answer
    x = 139,039.25

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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.