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Finding the Fourth Proportional to 178,963.54, 246,969.84 and 98,392.43

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Solution

The fourth proportional to 178,963.54, 246,969.84 and 98,392.43 is: 135,781.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,963.54 : 246,969.84 = 98,392.43 : x
  2. Step 2: Convert to fraction form
    178,963.54/246,969.84 = 98,392.43/x
  3. Step 3: Cross multiply
    178,963.54x = 246,969.84 × 98,392.43
  4. Step 4: Simplify right side
    178,963.54x = 24,299,962,694.31
  5. Step 5: Solve for x
    x = 24,299,962,694.31/178,963.54
  6. Step 6: Final answer
    x = 135,781.64

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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.