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Finding the Fourth Proportional to 61,208.20, 91,805.01 and 16,839.46

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Solution

The fourth proportional to 61,208.20, 91,805.01 and 16,839.46 is: 25,257.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,208.20 : 91,805.01 = 16,839.46 : x
  2. Step 2: Convert to fraction form
    61,208.20/91,805.01 = 16,839.46/x
  3. Step 3: Cross multiply
    61,208.20x = 91,805.01 × 16,839.46
  4. Step 4: Simplify right side
    61,208.20x = 1,545,946,793.69
  5. Step 5: Solve for x
    x = 1,545,946,793.69/61,208.20
  6. Step 6: Final answer
    x = 25,257.18

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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.