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Finding the Fourth Proportional to 92,974.74, 128,299.92 and 50,532.98

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Solution

The fourth proportional to 92,974.74, 128,299.92 and 50,532.98 is: 69,732.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,974.74 : 128,299.92 = 50,532.98 : x
  2. Step 2: Convert to fraction form
    92,974.74/128,299.92 = 50,532.98/x
  3. Step 3: Cross multiply
    92,974.74x = 128,299.92 × 50,532.98
  4. Step 4: Simplify right side
    92,974.74x = 6,483,377,291.36
  5. Step 5: Solve for x
    x = 6,483,377,291.36/92,974.74
  6. Step 6: Final answer
    x = 69,732.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.