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Finding the Fourth Proportional to 203,565.33, 305,250.93 and 91,246.48

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Solution

The fourth proportional to 203,565.33, 305,250.93 and 91,246.48 is: 136,826.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,565.33 : 305,250.93 = 91,246.48 : x
  2. Step 2: Convert to fraction form
    203,565.33/305,250.93 = 91,246.48/x
  3. Step 3: Cross multiply
    203,565.33x = 305,250.93 × 91,246.48
  4. Step 4: Simplify right side
    203,565.33x = 27,853,072,116.10
  5. Step 5: Solve for x
    x = 27,853,072,116.10/203,565.33
  6. Step 6: Final answer
    x = 136,826.21

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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.