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Finding the Fourth Proportional to 178,930.72, 246,927.46 and 98,361.64

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Solution

The fourth proportional to 178,930.72, 246,927.46 and 98,361.64 is: 135,740.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,930.72 : 246,927.46 = 98,361.64 : x
  2. Step 2: Convert to fraction form
    178,930.72/246,927.46 = 98,361.64/x
  3. Step 3: Cross multiply
    178,930.72x = 246,927.46 × 98,361.64
  4. Step 4: Simplify right side
    178,930.72x = 24,288,189,063.41
  5. Step 5: Solve for x
    x = 24,288,189,063.41/178,930.72
  6. Step 6: Final answer
    x = 135,740.75

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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.