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Finding the Fourth Proportional to 178,876.80, 246,848.40 and 98,305.20

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Solution

The fourth proportional to 178,876.80, 246,848.40 and 98,305.20 is: 135,660.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,876.80 : 246,848.40 = 98,305.20 : x
  2. Step 2: Convert to fraction form
    178,876.80/246,848.40 = 98,305.20/x
  3. Step 3: Cross multiply
    178,876.80x = 246,848.40 × 98,305.20
  4. Step 4: Simplify right side
    178,876.80x = 24,266,481,331.68
  5. Step 5: Solve for x
    x = 24,266,481,331.68/178,876.80
  6. Step 6: Final answer
    x = 135,660.31

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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.