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Finding the Fourth Proportional to 201,747.20, 302,649.60 and 68,633.60

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Solution

The fourth proportional to 201,747.20, 302,649.60 and 68,633.60 is: 102,960.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,747.20 : 302,649.60 = 68,633.60 : x
  2. Step 2: Convert to fraction form
    201,747.20/302,649.60 = 68,633.60/x
  3. Step 3: Cross multiply
    201,747.20x = 302,649.60 × 68,633.60
  4. Step 4: Simplify right side
    201,747.20x = 20,771,931,586.56
  5. Step 5: Solve for x
    x = 20,771,931,586.56/201,747.20
  6. Step 6: Final answer
    x = 102,960.20

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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.