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Finding the Fourth Proportional to 61,189.73, 91,767.89 and 16,805.93

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Solution

The fourth proportional to 61,189.73, 91,767.89 and 16,805.93 is: 25,204.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,189.73 : 91,767.89 = 16,805.93 : x
  2. Step 2: Convert to fraction form
    61,189.73/91,767.89 = 16,805.93/x
  3. Step 3: Cross multiply
    61,189.73x = 91,767.89 × 16,805.93
  4. Step 4: Simplify right side
    61,189.73x = 1,542,244,740.42
  5. Step 5: Solve for x
    x = 1,542,244,740.42/61,189.73
  6. Step 6: Final answer
    x = 25,204.31

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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.