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Finding the Fourth Proportional to 146,107.96, 218,985.61 and 71,115.73

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Solution

The fourth proportional to 146,107.96, 218,985.61 and 71,115.73 is: 106,587.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,107.96 : 218,985.61 = 71,115.73 : x
  2. Step 2: Convert to fraction form
    146,107.96/218,985.61 = 71,115.73/x
  3. Step 3: Cross multiply
    146,107.96x = 218,985.61 × 71,115.73
  4. Step 4: Simplify right side
    146,107.96x = 15,573,321,514.65
  5. Step 5: Solve for x
    x = 15,573,321,514.65/146,107.96
  6. Step 6: Final answer
    x = 106,587.77

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1.5x scale

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.