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Finding the Fourth Proportional to 73,231.70, 109,672.58 and 63,871.34

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Solution

The fourth proportional to 73,231.70, 109,672.58 and 63,871.34 is: 95,654.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,231.70 : 109,672.58 = 63,871.34 : x
  2. Step 2: Convert to fraction form
    73,231.70/109,672.58 = 63,871.34/x
  3. Step 3: Cross multiply
    73,231.70x = 109,672.58 × 63,871.34
  4. Step 4: Simplify right side
    73,231.70x = 7,004,934,257.17
  5. Step 5: Solve for x
    x = 7,004,934,257.17/73,231.70
  6. Step 6: Final answer
    x = 95,654.41

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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.