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Finding the Fourth Proportional to 186,787.50, 280,183.68 and 62,128.50

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Solution

The fourth proportional to 186,787.50, 280,183.68 and 62,128.50 is: 93,193.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,787.50 : 280,183.68 = 62,128.50 : x
  2. Step 2: Convert to fraction form
    186,787.50/280,183.68 = 62,128.50/x
  3. Step 3: Cross multiply
    186,787.50x = 280,183.68 × 62,128.50
  4. Step 4: Simplify right side
    186,787.50x = 17,407,391,762.88
  5. Step 5: Solve for x
    x = 17,407,391,762.88/186,787.50
  6. Step 6: Final answer
    x = 93,193.56

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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.