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Finding the Fourth Proportional to 265,238.21, 366,028.31 and 144,379.13

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Solution

The fourth proportional to 265,238.21, 366,028.31 and 144,379.13 is: 199,242.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,238.21 : 366,028.31 = 144,379.13 : x
  2. Step 2: Convert to fraction form
    265,238.21/366,028.31 = 144,379.13/x
  3. Step 3: Cross multiply
    265,238.21x = 366,028.31 × 144,379.13
  4. Step 4: Simplify right side
    265,238.21x = 52,846,846,401.13
  5. Step 5: Solve for x
    x = 52,846,846,401.13/265,238.21
  6. Step 6: Final answer
    x = 199,242.97

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1.5x scale

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.