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Finding the Fourth Proportional to 200,787.08, 301,199.34 and 72,735.44

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Solution

The fourth proportional to 200,787.08, 301,199.34 and 72,735.44 is: 109,109.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,787.08 : 301,199.34 = 72,735.44 : x
  2. Step 2: Convert to fraction form
    200,787.08/301,199.34 = 72,735.44/x
  3. Step 3: Cross multiply
    200,787.08x = 301,199.34 × 72,735.44
  4. Step 4: Simplify right side
    200,787.08x = 21,907,866,522.61
  5. Step 5: Solve for x
    x = 21,907,866,522.61/200,787.08
  6. Step 6: Final answer
    x = 109,109.94

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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.