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Finding the Fourth Proportional to 361,256.32, 541,960.57 and 136,611.78

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Solution

The fourth proportional to 361,256.32, 541,960.57 and 136,611.78 is: 204,946.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,256.32 : 541,960.57 = 136,611.78 : x
  2. Step 2: Convert to fraction form
    361,256.32/541,960.57 = 136,611.78/x
  3. Step 3: Cross multiply
    361,256.32x = 541,960.57 × 136,611.78
  4. Step 4: Simplify right side
    361,256.32x = 74,038,198,157.51
  5. Step 5: Solve for x
    x = 74,038,198,157.51/361,256.32
  6. Step 6: Final answer
    x = 204,946.44

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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.