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Finding the Fourth Proportional to 489,191.80, 733,917.30 and 173,615.80

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Solution

The fourth proportional to 489,191.80, 733,917.30 and 173,615.80 is: 260,469.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,191.80 : 733,917.30 = 173,615.80 : x
  2. Step 2: Convert to fraction form
    489,191.80/733,917.30 = 173,615.80/x
  3. Step 3: Cross multiply
    489,191.80x = 733,917.30 × 173,615.80
  4. Step 4: Simplify right side
    489,191.80x = 127,419,639,173.34
  5. Step 5: Solve for x
    x = 127,419,639,173.34/489,191.80
  6. Step 6: Final answer
    x = 260,469.70

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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.