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Finding the Fourth Proportional to 252,906.94, 349,007.42 and 139,740.22

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Solution

The fourth proportional to 252,906.94, 349,007.42 and 139,740.22 is: 192,839.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,906.94 : 349,007.42 = 139,740.22 : x
  2. Step 2: Convert to fraction form
    252,906.94/349,007.42 = 139,740.22/x
  3. Step 3: Cross multiply
    252,906.94x = 349,007.42 × 139,740.22
  4. Step 4: Simplify right side
    252,906.94x = 48,770,373,652.43
  5. Step 5: Solve for x
    x = 48,770,373,652.43/252,906.94
  6. Step 6: Final answer
    x = 192,839.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.