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Finding the Fourth Proportional to 159,258.39, 219,770.39 and 91,226.97

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Solution

The fourth proportional to 159,258.39, 219,770.39 and 91,226.97 is: 125,889.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,258.39 : 219,770.39 = 91,226.97 : x
  2. Step 2: Convert to fraction form
    159,258.39/219,770.39 = 91,226.97/x
  3. Step 3: Cross multiply
    159,258.39x = 219,770.39 × 91,226.97
  4. Step 4: Simplify right side
    159,258.39x = 20,048,987,895.65
  5. Step 5: Solve for x
    x = 20,048,987,895.65/159,258.39
  6. Step 6: Final answer
    x = 125,889.68

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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.