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Finding the Fourth Proportional to 118,388.97, 177,653.52 and 43,561.66

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Solution

The fourth proportional to 118,388.97, 177,653.52 and 43,561.66 is: 65,368.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,388.97 : 177,653.52 = 43,561.66 : x
  2. Step 2: Convert to fraction form
    118,388.97/177,653.52 = 43,561.66/x
  3. Step 3: Cross multiply
    118,388.97x = 177,653.52 × 43,561.66
  4. Step 4: Simplify right side
    118,388.97x = 7,738,882,191.06
  5. Step 5: Solve for x
    x = 7,738,882,191.06/118,388.97
  6. Step 6: Final answer
    x = 65,368.27

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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.