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Finding the Fourth Proportional to 77,806, 107,391.72 and 44,291.44

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Solution

The fourth proportional to 77,806, 107,391.72 and 44,291.44 is: 61,133.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,806 : 107,391.72 = 44,291.44 : x
  2. Step 2: Convert to fraction form
    77,806/107,391.72 = 44,291.44/x
  3. Step 3: Cross multiply
    77,806x = 107,391.72 × 44,291.44
  4. Step 4: Simplify right side
    77,806x = 4,756,533,922.88
  5. Step 5: Solve for x
    x = 4,756,533,922.88/77,806
  6. Step 6: Final answer
    x = 61,133.25

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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.