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Finding the Fourth Proportional to 168,543.55, 252,717.51 and 79,796.30

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Solution

The fourth proportional to 168,543.55, 252,717.51 and 79,796.30 is: 119,648.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,543.55 : 252,717.51 = 79,796.30 : x
  2. Step 2: Convert to fraction form
    168,543.55/252,717.51 = 79,796.30/x
  3. Step 3: Cross multiply
    168,543.55x = 252,717.51 × 79,796.30
  4. Step 4: Simplify right side
    168,543.55x = 20,165,922,243.21
  5. Step 5: Solve for x
    x = 20,165,922,243.21/168,543.55
  6. Step 6: Final answer
    x = 119,648.14

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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.