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Finding the Fourth Proportional to 144,758.73, 199,764.63 and 79,346.93

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Solution

The fourth proportional to 144,758.73, 199,764.63 and 79,346.93 is: 109,497.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,758.73 : 199,764.63 = 79,346.93 : x
  2. Step 2: Convert to fraction form
    144,758.73/199,764.63 = 79,346.93/x
  3. Step 3: Cross multiply
    144,758.73x = 199,764.63 × 79,346.93
  4. Step 4: Simplify right side
    144,758.73x = 15,850,709,114.26
  5. Step 5: Solve for x
    x = 15,850,709,114.26/144,758.73
  6. Step 6: Final answer
    x = 109,497.43

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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.