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Finding the Fourth Proportional to 168,267.87, 252,191.31 and 84,051.54

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Solution

The fourth proportional to 168,267.87, 252,191.31 and 84,051.54 is: 125,972.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,267.87 : 252,191.31 = 84,051.54 : x
  2. Step 2: Convert to fraction form
    168,267.87/252,191.31 = 84,051.54/x
  3. Step 3: Cross multiply
    168,267.87x = 252,191.31 × 84,051.54
  4. Step 4: Simplify right side
    168,267.87x = 21,197,067,980.12
  5. Step 5: Solve for x
    x = 21,197,067,980.12/168,267.87
  6. Step 6: Final answer
    x = 125,972.17

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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.