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Finding the Fourth Proportional to 118,419.24, 177,698.90 and 43,591.94

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Solution

The fourth proportional to 118,419.24, 177,698.90 and 43,591.94 is: 65,413.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,419.24 : 177,698.90 = 43,591.94 : x
  2. Step 2: Convert to fraction form
    118,419.24/177,698.90 = 43,591.94/x
  3. Step 3: Cross multiply
    118,419.24x = 177,698.90 × 43,591.94
  4. Step 4: Simplify right side
    118,419.24x = 7,746,239,786.87
  5. Step 5: Solve for x
    x = 7,746,239,786.87/118,419.24
  6. Step 6: Final answer
    x = 65,413.69

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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.