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Finding the Fourth Proportional to 231,020.80, 346,531.20 and 168,035.20

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Solution

The fourth proportional to 231,020.80, 346,531.20 and 168,035.20 is: 252,052.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,020.80 : 346,531.20 = 168,035.20 : x
  2. Step 2: Convert to fraction form
    231,020.80/346,531.20 = 168,035.20/x
  3. Step 3: Cross multiply
    231,020.80x = 346,531.20 × 168,035.20
  4. Step 4: Simplify right side
    231,020.80x = 58,229,439,498.24
  5. Step 5: Solve for x
    x = 58,229,439,498.24/231,020.80
  6. Step 6: Final answer
    x = 252,052.80

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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.