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Finding the Fourth Proportional to 61,797,763.80, 92,696,645.70 and 18,662,469.30

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Solution

The fourth proportional to 61,797,763.80, 92,696,645.70 and 18,662,469.30 is: 27,993,703.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,797,763.80 : 92,696,645.70 = 18,662,469.30 : x
  2. Step 2: Convert to fraction form
    61,797,763.80/92,696,645.70 = 18,662,469.30/x
  3. Step 3: Cross multiply
    61,797,763.80x = 92,696,645.70 × 18,662,469.30
  4. Step 4: Simplify right side
    61,797,763.80x = 1,729,948,304,589,227.25
  5. Step 5: Solve for x
    x = 1,729,948,304,589,227.25/61,797,763.80
  6. Step 6: Final answer
    x = 27,993,703.95

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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.