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Finding the Fourth Proportional to 61,869.91, 85,375.77 and 36,377.32

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Solution

The fourth proportional to 61,869.91, 85,375.77 and 36,377.32 is: 50,197.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,869.91 : 85,375.77 = 36,377.32 : x
  2. Step 2: Convert to fraction form
    61,869.91/85,375.77 = 36,377.32/x
  3. Step 3: Cross multiply
    61,869.91x = 85,375.77 × 36,377.32
  4. Step 4: Simplify right side
    61,869.91x = 3,105,741,705.54
  5. Step 5: Solve for x
    x = 3,105,741,705.54/61,869.91
  6. Step 6: Final answer
    x = 50,197.93

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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.