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Finding the Fourth Proportional to 201,672.20, 302,508.30 and 61,412.60

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Solution

The fourth proportional to 201,672.20, 302,508.30 and 61,412.60 is: 92,118.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,672.20 : 302,508.30 = 61,412.60 : x
  2. Step 2: Convert to fraction form
    201,672.20/302,508.30 = 61,412.60/x
  3. Step 3: Cross multiply
    201,672.20x = 302,508.30 × 61,412.60
  4. Step 4: Simplify right side
    201,672.20x = 18,577,821,224.58
  5. Step 5: Solve for x
    x = 18,577,821,224.58/201,672.20
  6. Step 6: Final answer
    x = 92,118.90

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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.