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Finding the Fourth Proportional to 201,445.17, 302,171.24 and 68,328.87

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Solution

The fourth proportional to 201,445.17, 302,171.24 and 68,328.87 is: 102,494.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,445.17 : 302,171.24 = 68,328.87 : x
  2. Step 2: Convert to fraction form
    201,445.17/302,171.24 = 68,328.87/x
  3. Step 3: Cross multiply
    201,445.17x = 302,171.24 × 68,328.87
  4. Step 4: Simplify right side
    201,445.17x = 20,647,019,375.70
  5. Step 5: Solve for x
    x = 20,647,019,375.70/201,445.17
  6. Step 6: Final answer
    x = 102,494.49

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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.