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Finding the Fourth Proportional to 168,806.17, 252,928.09 and 118,781.16

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Solution

The fourth proportional to 168,806.17, 252,928.09 and 118,781.16 is: 177,973.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,806.17 : 252,928.09 = 118,781.16 : x
  2. Step 2: Convert to fraction form
    168,806.17/252,928.09 = 118,781.16/x
  3. Step 3: Cross multiply
    168,806.17x = 252,928.09 × 118,781.16
  4. Step 4: Simplify right side
    168,806.17x = 30,043,091,926.78
  5. Step 5: Solve for x
    x = 30,043,091,926.78/168,806.17
  6. Step 6: Final answer
    x = 177,973.90

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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.