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Finding the Fourth Proportional to 144,549.97, 216,732.43 and 69,520.69

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Solution

The fourth proportional to 144,549.97, 216,732.43 and 69,520.69 is: 104,236.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,549.97 : 216,732.43 = 69,520.69 : x
  2. Step 2: Convert to fraction form
    144,549.97/216,732.43 = 69,520.69/x
  3. Step 3: Cross multiply
    144,549.97x = 216,732.43 × 69,520.69
  4. Step 4: Simplify right side
    144,549.97x = 15,067,388,078.98
  5. Step 5: Solve for x
    x = 15,067,388,078.98/144,549.97
  6. Step 6: Final answer
    x = 104,236.54

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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.