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Finding the Fourth Proportional to 178,876.31, 246,853.85 and 98,305.88

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Solution

The fourth proportional to 178,876.31, 246,853.85 and 98,305.88 is: 135,664.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,876.31 : 246,853.85 = 98,305.88 : x
  2. Step 2: Convert to fraction form
    178,876.31/246,853.85 = 98,305.88/x
  3. Step 3: Cross multiply
    178,876.31x = 246,853.85 × 98,305.88
  4. Step 4: Simplify right side
    178,876.31x = 24,267,183,229.84
  5. Step 5: Solve for x
    x = 24,267,183,229.84/178,876.31
  6. Step 6: Final answer
    x = 135,664.60

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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.