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Finding the Fourth Proportional to 245,200.96, 367,540.08 and 139,792.96

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Solution

The fourth proportional to 245,200.96, 367,540.08 and 139,792.96 is: 209,540.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,200.96 : 367,540.08 = 139,792.96 : x
  2. Step 2: Convert to fraction form
    245,200.96/367,540.08 = 139,792.96/x
  3. Step 3: Cross multiply
    245,200.96x = 367,540.08 × 139,792.96
  4. Step 4: Simplify right side
    245,200.96x = 51,379,515,701.84
  5. Step 5: Solve for x
    x = 51,379,515,701.84/245,200.96
  6. Step 6: Final answer
    x = 209,540.43

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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.