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Finding the Fourth Proportional to 270,081.33, 405,141.71 and 92,586.84

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Solution

The fourth proportional to 270,081.33, 405,141.71 and 92,586.84 is: 138,887.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,081.33 : 405,141.71 = 92,586.84 : x
  2. Step 2: Convert to fraction form
    270,081.33/405,141.71 = 92,586.84/x
  3. Step 3: Cross multiply
    270,081.33x = 405,141.71 × 92,586.84
  4. Step 4: Simplify right side
    270,081.33x = 37,510,790,218.16
  5. Step 5: Solve for x
    x = 37,510,790,218.16/270,081.33
  6. Step 6: Final answer
    x = 138,887.02

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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.