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Finding the Fourth Proportional to 61,676.80, 85,104.86 and 36,173.54

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Solution

The fourth proportional to 61,676.80, 85,104.86 and 36,173.54 is: 49,914.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,676.80 : 85,104.86 = 36,173.54 : x
  2. Step 2: Convert to fraction form
    61,676.80/85,104.86 = 36,173.54/x
  3. Step 3: Cross multiply
    61,676.80x = 85,104.86 × 36,173.54
  4. Step 4: Simplify right side
    61,676.80x = 3,078,544,057.40
  5. Step 5: Solve for x
    x = 3,078,544,057.40/61,676.80
  6. Step 6: Final answer
    x = 49,914.13

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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.