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Finding the Fourth Proportional to 104,241.10, 156,361.78 and 25,354.78

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Solution

The fourth proportional to 104,241.10, 156,361.78 and 25,354.78 is: 38,032.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,241.10 : 156,361.78 = 25,354.78 : x
  2. Step 2: Convert to fraction form
    104,241.10/156,361.78 = 25,354.78/x
  3. Step 3: Cross multiply
    104,241.10x = 156,361.78 × 25,354.78
  4. Step 4: Simplify right side
    104,241.10x = 3,964,518,532.31
  5. Step 5: Solve for x
    x = 3,964,518,532.31/104,241.10
  6. Step 6: Final answer
    x = 38,032.20

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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.