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Finding the Fourth Proportional to 225,918.80, 338,489.40 and 146,992.40

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Solution

The fourth proportional to 225,918.80, 338,489.40 and 146,992.40 is: 220,235.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,918.80 : 338,489.40 = 146,992.40 : x
  2. Step 2: Convert to fraction form
    225,918.80/338,489.40 = 146,992.40/x
  3. Step 3: Cross multiply
    225,918.80x = 338,489.40 × 146,992.40
  4. Step 4: Simplify right side
    225,918.80x = 49,755,369,280.56
  5. Step 5: Solve for x
    x = 49,755,369,280.56/225,918.80
  6. Step 6: Final answer
    x = 220,235.63

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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.