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Finding the Fourth Proportional to 159,246.82, 219,735.48 and 91,250.70

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Solution

The fourth proportional to 159,246.82, 219,735.48 and 91,250.70 is: 125,911.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,246.82 : 219,735.48 = 91,250.70 : x
  2. Step 2: Convert to fraction form
    159,246.82/219,735.48 = 91,250.70/x
  3. Step 3: Cross multiply
    159,246.82x = 219,735.48 × 91,250.70
  4. Step 4: Simplify right side
    159,246.82x = 20,051,016,364.84
  5. Step 5: Solve for x
    x = 20,051,016,364.84/159,246.82
  6. Step 6: Final answer
    x = 125,911.57

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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.