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Finding the Fourth Proportional to 400,845.97, 601,247.89 and 134,611.93

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Solution

The fourth proportional to 400,845.97, 601,247.89 and 134,611.93 is: 201,910.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,845.97 : 601,247.89 = 134,611.93 : x
  2. Step 2: Convert to fraction form
    400,845.97/601,247.89 = 134,611.93/x
  3. Step 3: Cross multiply
    400,845.97x = 601,247.89 × 134,611.93
  4. Step 4: Simplify right side
    400,845.97x = 80,935,138,881.33
  5. Step 5: Solve for x
    x = 80,935,138,881.33/400,845.97
  6. Step 6: Final answer
    x = 201,910.82

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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.