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Finding the Fourth Proportional to 270,609.30, 373,415.42 and 161,691.93

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Solution

The fourth proportional to 270,609.30, 373,415.42 and 161,691.93 is: 223,119.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,609.30 : 373,415.42 = 161,691.93 : x
  2. Step 2: Convert to fraction form
    270,609.30/373,415.42 = 161,691.93/x
  3. Step 3: Cross multiply
    270,609.30x = 373,415.42 × 161,691.93
  4. Step 4: Simplify right side
    270,609.30x = 60,378,259,143.10
  5. Step 5: Solve for x
    x = 60,378,259,143.10/270,609.30
  6. Step 6: Final answer
    x = 223,119.68

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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.