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Finding the Fourth Proportional to 146,207.80, 218,793.30 and 99,551.80

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Solution

The fourth proportional to 146,207.80, 218,793.30 and 99,551.80 is: 148,974.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,207.80 : 218,793.30 = 99,551.80 : x
  2. Step 2: Convert to fraction form
    146,207.80/218,793.30 = 99,551.80/x
  3. Step 3: Cross multiply
    146,207.80x = 218,793.30 × 99,551.80
  4. Step 4: Simplify right side
    146,207.80x = 21,781,266,842.94
  5. Step 5: Solve for x
    x = 21,781,266,842.94/146,207.80
  6. Step 6: Final answer
    x = 148,974.73

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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.