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Finding the Fourth Proportional to 77,992.77, 107,630.04 and 44,008.46

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Solution

The fourth proportional to 77,992.77, 107,630.04 and 44,008.46 is: 60,731.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,992.77 : 107,630.04 = 44,008.46 : x
  2. Step 2: Convert to fraction form
    77,992.77/107,630.04 = 44,008.46/x
  3. Step 3: Cross multiply
    77,992.77x = 107,630.04 × 44,008.46
  4. Step 4: Simplify right side
    77,992.77x = 4,736,632,310.14
  5. Step 5: Solve for x
    x = 4,736,632,310.14/77,992.77
  6. Step 6: Final answer
    x = 60,731.68

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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.