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Finding the Fourth Proportional to 118,481.61, 177,602.36 and 51,057.57

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Solution

The fourth proportional to 118,481.61, 177,602.36 and 51,057.57 is: 76,534.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,481.61 : 177,602.36 = 51,057.57 : x
  2. Step 2: Convert to fraction form
    118,481.61/177,602.36 = 51,057.57/x
  3. Step 3: Cross multiply
    118,481.61x = 177,602.36 × 51,057.57
  4. Step 4: Simplify right side
    118,481.61x = 9,067,944,672.58
  5. Step 5: Solve for x
    x = 9,067,944,672.58/118,481.61
  6. Step 6: Final answer
    x = 76,534.62

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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.