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Finding the Fourth Proportional to 93,862.72, 140,764.68 and 30,668.44

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Solution

The fourth proportional to 93,862.72, 140,764.68 and 30,668.44 is: 45,993.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,862.72 : 140,764.68 = 30,668.44 : x
  2. Step 2: Convert to fraction form
    93,862.72/140,764.68 = 30,668.44/x
  3. Step 3: Cross multiply
    93,862.72x = 140,764.68 × 30,668.44
  4. Step 4: Simplify right side
    93,862.72x = 4,317,033,142.70
  5. Step 5: Solve for x
    x = 4,317,033,142.70/93,862.72
  6. Step 6: Final answer
    x = 45,993.05

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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.