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Finding the Fourth Proportional to 200,738.32, 301,136.12 and 65,773.52

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Solution

The fourth proportional to 200,738.32, 301,136.12 and 65,773.52 is: 98,669.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,738.32 : 301,136.12 = 65,773.52 : x
  2. Step 2: Convert to fraction form
    200,738.32/301,136.12 = 65,773.52/x
  3. Step 3: Cross multiply
    200,738.32x = 301,136.12 × 65,773.52
  4. Step 4: Simplify right side
    200,738.32x = 19,806,782,611.54
  5. Step 5: Solve for x
    x = 19,806,782,611.54/200,738.32
  6. Step 6: Final answer
    x = 98,669.66

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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.