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Finding the Fourth Proportional to 144,183.72, 215,973.99 and 115,950.90

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Solution

The fourth proportional to 144,183.72, 215,973.99 and 115,950.90 is: 173,683.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,183.72 : 215,973.99 = 115,950.90 : x
  2. Step 2: Convert to fraction form
    144,183.72/215,973.99 = 115,950.90/x
  3. Step 3: Cross multiply
    144,183.72x = 215,973.99 × 115,950.90
  4. Step 4: Simplify right side
    144,183.72x = 25,042,378,517.09
  5. Step 5: Solve for x
    x = 25,042,378,517.09/144,183.72
  6. Step 6: Final answer
    x = 173,683.81

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1.5x scale

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.