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Finding the Fourth Proportional to 118,796.88, 178,195.32 and 47,751.84

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Solution

The fourth proportional to 118,796.88, 178,195.32 and 47,751.84 is: 71,627.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,796.88 : 178,195.32 = 47,751.84 : x
  2. Step 2: Convert to fraction form
    118,796.88/178,195.32 = 47,751.84/x
  3. Step 3: Cross multiply
    118,796.88x = 178,195.32 × 47,751.84
  4. Step 4: Simplify right side
    118,796.88x = 8,509,154,409.39
  5. Step 5: Solve for x
    x = 8,509,154,409.39/118,796.88
  6. Step 6: Final answer
    x = 71,627.76

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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.