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Finding the Fourth Proportional to 104,361.69, 156,534.21 and 29,478.81

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Solution

The fourth proportional to 104,361.69, 156,534.21 and 29,478.81 is: 44,215.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,361.69 : 156,534.21 = 29,478.81 : x
  2. Step 2: Convert to fraction form
    104,361.69/156,534.21 = 29,478.81/x
  3. Step 3: Cross multiply
    104,361.69x = 156,534.21 × 29,478.81
  4. Step 4: Simplify right side
    104,361.69x = 4,614,442,235.09
  5. Step 5: Solve for x
    x = 4,614,442,235.09/104,361.69
  6. Step 6: Final answer
    x = 44,215.86

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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.