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Finding the Fourth Proportional to 118,456.54, 177,694.13 and 39,571.04

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Solution

The fourth proportional to 118,456.54, 177,694.13 and 39,571.04 is: 59,359.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,456.54 : 177,694.13 = 39,571.04 : x
  2. Step 2: Convert to fraction form
    118,456.54/177,694.13 = 39,571.04/x
  3. Step 3: Cross multiply
    118,456.54x = 177,694.13 × 39,571.04
  4. Step 4: Simplify right side
    118,456.54x = 7,031,542,069.16
  5. Step 5: Solve for x
    x = 7,031,542,069.16/118,456.54
  6. Step 6: Final answer
    x = 59,359.68

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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.