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Finding the Fourth Proportional to 118,907.36, 178,361.04 and 30,167.52

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Solution

The fourth proportional to 118,907.36, 178,361.04 and 30,167.52 is: 45,251.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,907.36 : 178,361.04 = 30,167.52 : x
  2. Step 2: Convert to fraction form
    118,907.36/178,361.04 = 30,167.52/x
  3. Step 3: Cross multiply
    118,907.36x = 178,361.04 × 30,167.52
  4. Step 4: Simplify right side
    118,907.36x = 5,380,710,241.42
  5. Step 5: Solve for x
    x = 5,380,710,241.42/118,907.36
  6. Step 6: Final answer
    x = 45,251.28

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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.