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Finding the Fourth Proportional to 67,371.89, 101,040.56 and 19,975.92

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Solution

The fourth proportional to 67,371.89, 101,040.56 and 19,975.92 is: 29,958.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,371.89 : 101,040.56 = 19,975.92 : x
  2. Step 2: Convert to fraction form
    67,371.89/101,040.56 = 19,975.92/x
  3. Step 3: Cross multiply
    67,371.89x = 101,040.56 × 19,975.92
  4. Step 4: Simplify right side
    67,371.89x = 2,018,377,851.81
  5. Step 5: Solve for x
    x = 2,018,377,851.81/67,371.89
  6. Step 6: Final answer
    x = 29,958.76

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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.