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Finding the Fourth Proportional to 352,376.31, 486,279.63 and 191,231.39

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Solution

The fourth proportional to 352,376.31, 486,279.63 and 191,231.39 is: 263,899.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,376.31 : 486,279.63 = 191,231.39 : x
  2. Step 2: Convert to fraction form
    352,376.31/486,279.63 = 191,231.39/x
  3. Step 3: Cross multiply
    352,376.31x = 486,279.63 × 191,231.39
  4. Step 4: Simplify right side
    352,376.31x = 92,991,927,142.19
  5. Step 5: Solve for x
    x = 92,991,927,142.19/352,376.31
  6. Step 6: Final answer
    x = 263,899.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.