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Finding the Fourth Proportional to 93,658.70, 140,480.15 and 40,348.55

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Solution

The fourth proportional to 93,658.70, 140,480.15 and 40,348.55 is: 60,519.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,658.70 : 140,480.15 = 40,348.55 : x
  2. Step 2: Convert to fraction form
    93,658.70/140,480.15 = 40,348.55/x
  3. Step 3: Cross multiply
    93,658.70x = 140,480.15 × 40,348.55
  4. Step 4: Simplify right side
    93,658.70x = 5,668,169,452.14
  5. Step 5: Solve for x
    x = 5,668,169,452.14/93,658.70
  6. Step 6: Final answer
    x = 60,519.42

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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.