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Finding the Fourth Proportional to 118,696.69, 177,987.93 and 39,755.71

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Solution

The fourth proportional to 118,696.69, 177,987.93 and 39,755.71 is: 59,614.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,696.69 : 177,987.93 = 39,755.71 : x
  2. Step 2: Convert to fraction form
    118,696.69/177,987.93 = 39,755.71/x
  3. Step 3: Cross multiply
    118,696.69x = 177,987.93 × 39,755.71
  4. Step 4: Simplify right side
    118,696.69x = 7,076,036,528.58
  5. Step 5: Solve for x
    x = 7,076,036,528.58/118,696.69
  6. Step 6: Final answer
    x = 59,614.44

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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.