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Finding the Fourth Proportional to 201,738.60, 302,651.10 and 61,511.40

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Solution

The fourth proportional to 201,738.60, 302,651.10 and 61,511.40 is: 92,280.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,738.60 : 302,651.10 = 61,511.40 : x
  2. Step 2: Convert to fraction form
    201,738.60/302,651.10 = 61,511.40/x
  3. Step 3: Cross multiply
    201,738.60x = 302,651.10 × 61,511.40
  4. Step 4: Simplify right side
    201,738.60x = 18,616,492,872.54
  5. Step 5: Solve for x
    x = 18,616,492,872.54/201,738.60
  6. Step 6: Final answer
    x = 92,280.27

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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.