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Finding the Fourth Proportional to 353,446.20, 530,169.30 and 153,732.60

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Solution

The fourth proportional to 353,446.20, 530,169.30 and 153,732.60 is: 230,598.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,446.20 : 530,169.30 = 153,732.60 : x
  2. Step 2: Convert to fraction form
    353,446.20/530,169.30 = 153,732.60/x
  3. Step 3: Cross multiply
    353,446.20x = 530,169.30 × 153,732.60
  4. Step 4: Simplify right side
    353,446.20x = 81,504,304,929.18
  5. Step 5: Solve for x
    x = 81,504,304,929.18/353,446.20
  6. Step 6: Final answer
    x = 230,598.90

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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.