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Finding the Fourth Proportional to 168,720.51, 252,559.52 and 92,628.71

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Solution

The fourth proportional to 168,720.51, 252,559.52 and 92,628.71 is: 138,656.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,720.51 : 252,559.52 = 92,628.71 : x
  2. Step 2: Convert to fraction form
    168,720.51/252,559.52 = 92,628.71/x
  3. Step 3: Cross multiply
    168,720.51x = 252,559.52 × 92,628.71
  4. Step 4: Simplify right side
    168,720.51x = 23,394,262,535.82
  5. Step 5: Solve for x
    x = 23,394,262,535.82/168,720.51
  6. Step 6: Final answer
    x = 138,656.90

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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.