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Finding the Fourth Proportional to 489,021.60, 733,751.10 and 173,704.80

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Solution

The fourth proportional to 489,021.60, 733,751.10 and 173,704.80 is: 260,634.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,021.60 : 733,751.10 = 173,704.80 : x
  2. Step 2: Convert to fraction form
    489,021.60/733,751.10 = 173,704.80/x
  3. Step 3: Cross multiply
    489,021.60x = 733,751.10 × 173,704.80
  4. Step 4: Simplify right side
    489,021.60x = 127,456,088,075.28
  5. Step 5: Solve for x
    x = 127,456,088,075.28/489,021.60
  6. Step 6: Final answer
    x = 260,634.88

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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.