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Finding the Fourth Proportional to 61,191.57, 91,785.43 and 16,817.94

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Solution

The fourth proportional to 61,191.57, 91,785.43 and 16,817.94 is: 25,226.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,191.57 : 91,785.43 = 16,817.94 : x
  2. Step 2: Convert to fraction form
    61,191.57/91,785.43 = 16,817.94/x
  3. Step 3: Cross multiply
    61,191.57x = 91,785.43 × 16,817.94
  4. Step 4: Simplify right side
    61,191.57x = 1,543,641,570.19
  5. Step 5: Solve for x
    x = 1,543,641,570.19/61,191.57
  6. Step 6: Final answer
    x = 25,226.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.