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Finding the Fourth Proportional to 118,620.57, 177,816.56 and 43,699.79

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Solution

The fourth proportional to 118,620.57, 177,816.56 and 43,699.79 is: 65,507.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,620.57 : 177,816.56 = 43,699.79 : x
  2. Step 2: Convert to fraction form
    118,620.57/177,816.56 = 43,699.79/x
  3. Step 3: Cross multiply
    118,620.57x = 177,816.56 × 43,699.79
  4. Step 4: Simplify right side
    118,620.57x = 7,770,545,222.94
  5. Step 5: Solve for x
    x = 7,770,545,222.94/118,620.57
  6. Step 6: Final answer
    x = 65,507.57

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1.5x scale

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.