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Finding the Fourth Proportional to 73,992.31, 102,110.43 and 43,776.88

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Solution

The fourth proportional to 73,992.31, 102,110.43 and 43,776.88 is: 60,412.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,992.31 : 102,110.43 = 43,776.88 : x
  2. Step 2: Convert to fraction form
    73,992.31/102,110.43 = 43,776.88/x
  3. Step 3: Cross multiply
    73,992.31x = 102,110.43 × 43,776.88
  4. Step 4: Simplify right side
    73,992.31x = 4,470,076,040.86
  5. Step 5: Solve for x
    x = 4,470,076,040.86/73,992.31
  6. Step 6: Final answer
    x = 60,412.71

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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.