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Finding the Fourth Proportional to 158,651.42, 218,857.42 and 104,195.77

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Solution

The fourth proportional to 158,651.42, 218,857.42 and 104,195.77 is: 143,736.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,651.42 : 218,857.42 = 104,195.77 : x
  2. Step 2: Convert to fraction form
    158,651.42/218,857.42 = 104,195.77/x
  3. Step 3: Cross multiply
    158,651.42x = 218,857.42 × 104,195.77
  4. Step 4: Simplify right side
    158,651.42x = 22,804,016,589.48
  5. Step 5: Solve for x
    x = 22,804,016,589.48/158,651.42
  6. Step 6: Final answer
    x = 143,736.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.