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Finding the Fourth Proportional to 352,761.57, 486,811.89 and 191,615.31

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Solution

The fourth proportional to 352,761.57, 486,811.89 and 191,615.31 is: 264,429.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,761.57 : 486,811.89 = 191,615.31 : x
  2. Step 2: Convert to fraction form
    352,761.57/486,811.89 = 191,615.31/x
  3. Step 3: Cross multiply
    352,761.57x = 486,811.89 × 191,615.31
  4. Step 4: Simplify right side
    352,761.57x = 93,280,611,214.04
  5. Step 5: Solve for x
    x = 93,280,611,214.04/352,761.57
  6. Step 6: Final answer
    x = 264,429.63

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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.