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Finding the Fourth Proportional to 118,314.80, 177,520.80 and 43,470.80

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Solution

The fourth proportional to 118,314.80, 177,520.80 and 43,470.80 is: 65,224.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,314.80 : 177,520.80 = 43,470.80 : x
  2. Step 2: Convert to fraction form
    118,314.80/177,520.80 = 43,470.80/x
  3. Step 3: Cross multiply
    118,314.80x = 177,520.80 × 43,470.80
  4. Step 4: Simplify right side
    118,314.80x = 7,716,971,192.64
  5. Step 5: Solve for x
    x = 7,716,971,192.64/118,314.80
  6. Step 6: Final answer
    x = 65,224.06

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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.