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Finding the Fourth Proportional to 330,744.60, 496,116.90 and 173,021.40

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Solution

The fourth proportional to 330,744.60, 496,116.90 and 173,021.40 is: 259,532.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,744.60 : 496,116.90 = 173,021.40 : x
  2. Step 2: Convert to fraction form
    330,744.60/496,116.90 = 173,021.40/x
  3. Step 3: Cross multiply
    330,744.60x = 496,116.90 × 173,021.40
  4. Step 4: Simplify right side
    330,744.60x = 85,838,840,601.66
  5. Step 5: Solve for x
    x = 85,838,840,601.66/330,744.60
  6. Step 6: Final answer
    x = 259,532.10

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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.