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Finding the Fourth Proportional to 186,635.44, 279,787.37 and 72,757.00

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Solution

The fourth proportional to 186,635.44, 279,787.37 and 72,757.00 is: 109,070.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,635.44 : 279,787.37 = 72,757.00 : x
  2. Step 2: Convert to fraction form
    186,635.44/279,787.37 = 72,757.00/x
  3. Step 3: Cross multiply
    186,635.44x = 279,787.37 × 72,757.00
  4. Step 4: Simplify right side
    186,635.44x = 20,356,488,280.15
  5. Step 5: Solve for x
    x = 20,356,488,280.15/186,635.44
  6. Step 6: Final answer
    x = 109,070.86

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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.