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Finding the Fourth Proportional to 73,471.29, 110,165.45 and 67,201.89

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Solution

The fourth proportional to 73,471.29, 110,165.45 and 67,201.89 is: 100,764.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,471.29 : 110,165.45 = 67,201.89 : x
  2. Step 2: Convert to fraction form
    73,471.29/110,165.45 = 67,201.89/x
  3. Step 3: Cross multiply
    73,471.29x = 110,165.45 × 67,201.89
  4. Step 4: Simplify right side
    73,471.29x = 7,403,326,116.69
  5. Step 5: Solve for x
    x = 7,403,326,116.69/73,471.29
  6. Step 6: Final answer
    x = 100,764.89

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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.