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Finding the Fourth Proportional to 167,212.82, 250,901.25 and 78,473.54

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Solution

The fourth proportional to 167,212.82, 250,901.25 and 78,473.54 is: 117,748.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,212.82 : 250,901.25 = 78,473.54 : x
  2. Step 2: Convert to fraction form
    167,212.82/250,901.25 = 78,473.54/x
  3. Step 3: Cross multiply
    167,212.82x = 250,901.25 × 78,473.54
  4. Step 4: Simplify right side
    167,212.82x = 19,689,109,610.90
  5. Step 5: Solve for x
    x = 19,689,109,610.90/167,212.82
  6. Step 6: Final answer
    x = 117,748.80

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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.