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Finding the Fourth Proportional to 118,611.57, 177,917.46 and 48,490.88

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Solution

The fourth proportional to 118,611.57, 177,917.46 and 48,490.88 is: 72,736.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,611.57 : 177,917.46 = 48,490.88 : x
  2. Step 2: Convert to fraction form
    118,611.57/177,917.46 = 48,490.88/x
  3. Step 3: Cross multiply
    118,611.57x = 177,917.46 × 48,490.88
  4. Step 4: Simplify right side
    118,611.57x = 8,627,373,904.49
  5. Step 5: Solve for x
    x = 8,627,373,904.49/118,611.57
  6. Step 6: Final answer
    x = 72,736.36

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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.