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Finding the Fourth Proportional to 178,676.15, 246,561.91 and 98,103.15

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Solution

The fourth proportional to 178,676.15, 246,561.91 and 98,103.15 is: 135,376.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,676.15 : 246,561.91 = 98,103.15 : x
  2. Step 2: Convert to fraction form
    178,676.15/246,561.91 = 98,103.15/x
  3. Step 3: Cross multiply
    178,676.15x = 246,561.91 × 98,103.15
  4. Step 4: Simplify right side
    178,676.15x = 24,188,499,795.76
  5. Step 5: Solve for x
    x = 24,188,499,795.76/178,676.15
  6. Step 6: Final answer
    x = 135,376.21

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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.