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Finding the Fourth Proportional to 110,359.78, 165,538.80 and 73,086.66

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Solution

The fourth proportional to 110,359.78, 165,538.80 and 73,086.66 is: 109,629.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,359.78 : 165,538.80 = 73,086.66 : x
  2. Step 2: Convert to fraction form
    110,359.78/165,538.80 = 73,086.66/x
  3. Step 3: Cross multiply
    110,359.78x = 165,538.80 × 73,086.66
  4. Step 4: Simplify right side
    110,359.78x = 12,098,677,992.41
  5. Step 5: Solve for x
    x = 12,098,677,992.41/110,359.78
  6. Step 6: Final answer
    x = 109,629.42

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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.