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Finding the Fourth Proportional to 201,732.70, 302,511.56 and 68,577.20

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Solution

The fourth proportional to 201,732.70, 302,511.56 and 68,577.20 is: 102,836.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,732.70 : 302,511.56 = 68,577.20 : x
  2. Step 2: Convert to fraction form
    201,732.70/302,511.56 = 68,577.20/x
  3. Step 3: Cross multiply
    201,732.70x = 302,511.56 × 68,577.20
  4. Step 4: Simplify right side
    201,732.70x = 20,745,395,752.43
  5. Step 5: Solve for x
    x = 20,745,395,752.43/201,732.70
  6. Step 6: Final answer
    x = 102,836.06

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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.