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Finding the Fourth Proportional to 118,665.69, 177,998.67 and 43,753.38

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Solution

The fourth proportional to 118,665.69, 177,998.67 and 43,753.38 is: 65,630.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,665.69 : 177,998.67 = 43,753.38 : x
  2. Step 2: Convert to fraction form
    118,665.69/177,998.67 = 43,753.38/x
  3. Step 3: Cross multiply
    118,665.69x = 177,998.67 × 43,753.38
  4. Step 4: Simplify right side
    118,665.69x = 7,788,043,448.00
  5. Step 5: Solve for x
    x = 7,788,043,448.00/118,665.69
  6. Step 6: Final answer
    x = 65,630.12

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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.