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Finding the Fourth Proportional to 178,879.92, 246,842.34 and 98,305.72

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Solution

The fourth proportional to 178,879.92, 246,842.34 and 98,305.72 is: 135,655.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,879.92 : 246,842.34 = 98,305.72 : x
  2. Step 2: Convert to fraction form
    178,879.92/246,842.34 = 98,305.72/x
  3. Step 3: Cross multiply
    178,879.92x = 246,842.34 × 98,305.72
  4. Step 4: Simplify right side
    178,879.92x = 24,266,013,960.18
  5. Step 5: Solve for x
    x = 24,266,013,960.18/178,879.92
  6. Step 6: Final answer
    x = 135,655.33

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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.