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Finding the Fourth Proportional to 330,361.78, 495,542.39 and 93,706.51

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Solution

The fourth proportional to 330,361.78, 495,542.39 and 93,706.51 is: 140,559.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,361.78 : 495,542.39 = 93,706.51 : x
  2. Step 2: Convert to fraction form
    330,361.78/495,542.39 = 93,706.51/x
  3. Step 3: Cross multiply
    330,361.78x = 495,542.39 × 93,706.51
  4. Step 4: Simplify right side
    330,361.78x = 46,435,546,919.37
  5. Step 5: Solve for x
    x = 46,435,546,919.37/330,361.78
  6. Step 6: Final answer
    x = 140,559.68

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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.