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Finding the Fourth Proportional to 76,167.66, 105,112.45 and 43,884.44

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Solution

The fourth proportional to 76,167.66, 105,112.45 and 43,884.44 is: 60,561.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,167.66 : 105,112.45 = 43,884.44 : x
  2. Step 2: Convert to fraction form
    76,167.66/105,112.45 = 43,884.44/x
  3. Step 3: Cross multiply
    76,167.66x = 105,112.45 × 43,884.44
  4. Step 4: Simplify right side
    76,167.66x = 4,612,801,005.28
  5. Step 5: Solve for x
    x = 4,612,801,005.28/76,167.66
  6. Step 6: Final answer
    x = 60,561.15

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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.