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Finding the Fourth Proportional to 118,456.80, 177,579.62 and 43,558.89

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Solution

The fourth proportional to 118,456.80, 177,579.62 and 43,558.89 is: 65,299.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,456.80 : 177,579.62 = 43,558.89 : x
  2. Step 2: Convert to fraction form
    118,456.80/177,579.62 = 43,558.89/x
  3. Step 3: Cross multiply
    118,456.80x = 177,579.62 × 43,558.89
  4. Step 4: Simplify right side
    118,456.80x = 7,735,170,790.38
  5. Step 5: Solve for x
    x = 7,735,170,790.38/118,456.80
  6. Step 6: Final answer
    x = 65,299.51

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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.