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Finding the Fourth Proportional to 118,642.43, 177,935.69 and 34,380.36

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Solution

The fourth proportional to 118,642.43, 177,935.69 and 34,380.36 is: 51,562.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,642.43 : 177,935.69 = 34,380.36 : x
  2. Step 2: Convert to fraction form
    118,642.43/177,935.69 = 34,380.36/x
  3. Step 3: Cross multiply
    118,642.43x = 177,935.69 × 34,380.36
  4. Step 4: Simplify right side
    118,642.43x = 6,117,493,079.05
  5. Step 5: Solve for x
    x = 6,117,493,079.05/118,642.43
  6. Step 6: Final answer
    x = 51,562.44

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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.