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Finding the Fourth Proportional to 275,168.53, 412,684.44 and 155,278.12

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Solution

The fourth proportional to 275,168.53, 412,684.44 and 155,278.12 is: 232,878.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,168.53 : 412,684.44 = 155,278.12 : x
  2. Step 2: Convert to fraction form
    275,168.53/412,684.44 = 155,278.12/x
  3. Step 3: Cross multiply
    275,168.53x = 412,684.44 × 155,278.12
  4. Step 4: Simplify right side
    275,168.53x = 64,080,863,996.45
  5. Step 5: Solve for x
    x = 64,080,863,996.45/275,168.53
  6. Step 6: Final answer
    x = 232,878.61

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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.