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Finding the Fourth Proportional to 300,965.38, 451,603.27 and 141,057.56

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Solution

The fourth proportional to 300,965.38, 451,603.27 and 141,057.56 is: 211,659.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,965.38 : 451,603.27 = 141,057.56 : x
  2. Step 2: Convert to fraction form
    300,965.38/451,603.27 = 141,057.56/x
  3. Step 3: Cross multiply
    300,965.38x = 451,603.27 × 141,057.56
  4. Step 4: Simplify right side
    300,965.38x = 63,702,055,354.22
  5. Step 5: Solve for x
    x = 63,702,055,354.22/300,965.38
  6. Step 6: Final answer
    x = 211,659.08

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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.