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Finding the Fourth Proportional to 201,930.60, 302,893.20 and 61,689.90

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Solution

The fourth proportional to 201,930.60, 302,893.20 and 61,689.90 is: 92,534.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,930.60 : 302,893.20 = 61,689.90 : x
  2. Step 2: Convert to fraction form
    201,930.60/302,893.20 = 61,689.90/x
  3. Step 3: Cross multiply
    201,930.60x = 302,893.20 × 61,689.90
  4. Step 4: Simplify right side
    201,930.60x = 18,685,451,218.68
  5. Step 5: Solve for x
    x = 18,685,451,218.68/201,930.60
  6. Step 6: Final answer
    x = 92,534.03

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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.