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Finding the Fourth Proportional to 118,578.52, 177,824.93 and 39,674.29

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Solution

The fourth proportional to 118,578.52, 177,824.93 and 39,674.29 is: 59,497.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,578.52 : 177,824.93 = 39,674.29 : x
  2. Step 2: Convert to fraction form
    118,578.52/177,824.93 = 39,674.29/x
  3. Step 3: Cross multiply
    118,578.52x = 177,824.93 × 39,674.29
  4. Step 4: Simplify right side
    118,578.52x = 7,055,076,754.55
  5. Step 5: Solve for x
    x = 7,055,076,754.55/118,578.52
  6. Step 6: Final answer
    x = 59,497.09

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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.