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Finding the Fourth Proportional to 207,264.52, 310,896.72 and 74,136.70

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Solution

The fourth proportional to 207,264.52, 310,896.72 and 74,136.70 is: 111,205.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,264.52 : 310,896.72 = 74,136.70 : x
  2. Step 2: Convert to fraction form
    207,264.52/310,896.72 = 74,136.70/x
  3. Step 3: Cross multiply
    207,264.52x = 310,896.72 × 74,136.70
  4. Step 4: Simplify right side
    207,264.52x = 23,048,856,861.62
  5. Step 5: Solve for x
    x = 23,048,856,861.62/207,264.52
  6. Step 6: Final answer
    x = 111,205.03

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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.