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Finding the Fourth Proportional to 118,487.88, 177,735.42 and 51,893.64

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Solution

The fourth proportional to 118,487.88, 177,735.42 and 51,893.64 is: 77,842.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,487.88 : 177,735.42 = 51,893.64 : x
  2. Step 2: Convert to fraction form
    118,487.88/177,735.42 = 51,893.64/x
  3. Step 3: Cross multiply
    118,487.88x = 177,735.42 × 51,893.64
  4. Step 4: Simplify right side
    118,487.88x = 9,223,337,900.73
  5. Step 5: Solve for x
    x = 9,223,337,900.73/118,487.88
  6. Step 6: Final answer
    x = 77,842.04

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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.