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Finding the Fourth Proportional to 324,158.90, 486,133.20 and 107,960.09

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Solution

The fourth proportional to 324,158.90, 486,133.20 and 107,960.09 is: 161,905.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,158.90 : 486,133.20 = 107,960.09 : x
  2. Step 2: Convert to fraction form
    324,158.90/486,133.20 = 107,960.09/x
  3. Step 3: Cross multiply
    324,158.90x = 486,133.20 × 107,960.09
  4. Step 4: Simplify right side
    324,158.90x = 52,482,981,593.32
  5. Step 5: Solve for x
    x = 52,482,981,593.32/324,158.90
  6. Step 6: Final answer
    x = 161,905.11

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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.