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Finding the Fourth Proportional to 202,787.43, 304,201.80 and 69,650.43

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Solution

The fourth proportional to 202,787.43, 304,201.80 and 69,650.43 is: 104,482.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,787.43 : 304,201.80 = 69,650.43 : x
  2. Step 2: Convert to fraction form
    202,787.43/304,201.80 = 69,650.43/x
  3. Step 3: Cross multiply
    202,787.43x = 304,201.80 × 69,650.43
  4. Step 4: Simplify right side
    202,787.43x = 21,187,786,176.77
  5. Step 5: Solve for x
    x = 21,187,786,176.77/202,787.43
  6. Step 6: Final answer
    x = 104,482.74

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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.