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Finding the Fourth Proportional to 270,087.30, 405,191.10 and 101,609.04

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Solution

The fourth proportional to 270,087.30, 405,191.10 and 101,609.04 is: 152,436.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,087.30 : 405,191.10 = 101,609.04 : x
  2. Step 2: Convert to fraction form
    270,087.30/405,191.10 = 101,609.04/x
  3. Step 3: Cross multiply
    270,087.30x = 405,191.10 × 101,609.04
  4. Step 4: Simplify right side
    270,087.30x = 41,171,078,687.54
  5. Step 5: Solve for x
    x = 41,171,078,687.54/270,087.30
  6. Step 6: Final answer
    x = 152,436.19

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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.