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Finding the Fourth Proportional to 118,104.60, 177,171.30 and 43,213.08

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Solution

The fourth proportional to 118,104.60, 177,171.30 and 43,213.08 is: 64,824.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,104.60 : 177,171.30 = 43,213.08 : x
  2. Step 2: Convert to fraction form
    118,104.60/177,171.30 = 43,213.08/x
  3. Step 3: Cross multiply
    118,104.60x = 177,171.30 × 43,213.08
  4. Step 4: Simplify right side
    118,104.60x = 7,656,117,560.60
  5. Step 5: Solve for x
    x = 7,656,117,560.60/118,104.60
  6. Step 6: Final answer
    x = 64,824.89

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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.