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Finding the Fourth Proportional to 92,491.83, 138,737.81 and 22,371.21

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Solution

The fourth proportional to 92,491.83, 138,737.81 and 22,371.21 is: 33,556.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,491.83 : 138,737.81 = 22,371.21 : x
  2. Step 2: Convert to fraction form
    92,491.83/138,737.81 = 22,371.21/x
  3. Step 3: Cross multiply
    92,491.83x = 138,737.81 × 22,371.21
  4. Step 4: Simplify right side
    92,491.83x = 3,103,732,570.59
  5. Step 5: Solve for x
    x = 3,103,732,570.59/92,491.83
  6. Step 6: Final answer
    x = 33,556.83

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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.