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Finding the Fourth Proportional to 118,532.97, 177,789.74 and 35,426.97

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Solution

The fourth proportional to 118,532.97, 177,789.74 and 35,426.97 is: 53,137.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,532.97 : 177,789.74 = 35,426.97 : x
  2. Step 2: Convert to fraction form
    118,532.97/177,789.74 = 35,426.97/x
  3. Step 3: Cross multiply
    118,532.97x = 177,789.74 × 35,426.97
  4. Step 4: Simplify right side
    118,532.97x = 6,298,551,608.15
  5. Step 5: Solve for x
    x = 6,298,551,608.15/118,532.97
  6. Step 6: Final answer
    x = 53,137.55

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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.