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Finding the Fourth Proportional to 178,392.29, 246,310.50 and 114,840.78

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Solution

The fourth proportional to 178,392.29, 246,310.50 and 114,840.78 is: 158,563.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,392.29 : 246,310.50 = 114,840.78 : x
  2. Step 2: Convert to fraction form
    178,392.29/246,310.50 = 114,840.78/x
  3. Step 3: Cross multiply
    178,392.29x = 246,310.50 × 114,840.78
  4. Step 4: Simplify right side
    178,392.29x = 28,286,489,942.19
  5. Step 5: Solve for x
    x = 28,286,489,942.19/178,392.29
  6. Step 6: Final answer
    x = 158,563.42

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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.