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Finding the Fourth Proportional to 92,477.70, 138,716.55 and 33,315.30

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Solution

The fourth proportional to 92,477.70, 138,716.55 and 33,315.30 is: 49,972.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,477.70 : 138,716.55 = 33,315.30 : x
  2. Step 2: Convert to fraction form
    92,477.70/138,716.55 = 33,315.30/x
  3. Step 3: Cross multiply
    92,477.70x = 138,716.55 × 33,315.30
  4. Step 4: Simplify right side
    92,477.70x = 4,621,383,478.22
  5. Step 5: Solve for x
    x = 4,621,383,478.22/92,477.70
  6. Step 6: Final answer
    x = 49,972.95

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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.