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Finding the Fourth Proportional to 167,388.80, 250,849.92 and 125,787.20

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Solution

The fourth proportional to 167,388.80, 250,849.92 and 125,787.20 is: 188,505.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,388.80 : 250,849.92 = 125,787.20 : x
  2. Step 2: Convert to fraction form
    167,388.80/250,849.92 = 125,787.20/x
  3. Step 3: Cross multiply
    167,388.80x = 250,849.92 × 125,787.20
  4. Step 4: Simplify right side
    167,388.80x = 31,553,709,057.02
  5. Step 5: Solve for x
    x = 31,553,709,057.02/167,388.80
  6. Step 6: Final answer
    x = 188,505.50

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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.