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Finding the Fourth Proportional to 118,656.41, 177,979.99 and 43,744.15

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Solution

The fourth proportional to 118,656.41, 177,979.99 and 43,744.15 is: 65,614.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,656.41 : 177,979.99 = 43,744.15 : x
  2. Step 2: Convert to fraction form
    118,656.41/177,979.99 = 43,744.15/x
  3. Step 3: Cross multiply
    118,656.41x = 177,979.99 × 43,744.15
  4. Step 4: Simplify right side
    118,656.41x = 7,785,583,379.56
  5. Step 5: Solve for x
    x = 7,785,583,379.56/118,656.41
  6. Step 6: Final answer
    x = 65,614.52

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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.