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Finding the Fourth Proportional to 202,401.36, 303,787.26 and 102,630.42

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Solution

The fourth proportional to 202,401.36, 303,787.26 and 102,630.42 is: 154,039.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,401.36 : 303,787.26 = 102,630.42 : x
  2. Step 2: Convert to fraction form
    202,401.36/303,787.26 = 102,630.42/x
  3. Step 3: Cross multiply
    202,401.36x = 303,787.26 × 102,630.42
  4. Step 4: Simplify right side
    202,401.36x = 31,177,814,084.45
  5. Step 5: Solve for x
    x = 31,177,814,084.45/202,401.36
  6. Step 6: Final answer
    x = 154,039.55

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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.