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Finding the Fourth Proportional to 188,446.20, 282,669.30 and 63,787.20

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Solution

The fourth proportional to 188,446.20, 282,669.30 and 63,787.20 is: 95,680.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,446.20 : 282,669.30 = 63,787.20 : x
  2. Step 2: Convert to fraction form
    188,446.20/282,669.30 = 63,787.20/x
  3. Step 3: Cross multiply
    188,446.20x = 282,669.30 × 63,787.20
  4. Step 4: Simplify right side
    188,446.20x = 18,030,683,172.96
  5. Step 5: Solve for x
    x = 18,030,683,172.96/188,446.20
  6. Step 6: Final answer
    x = 95,680.80

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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.