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Finding the Fourth Proportional to 547,218.42, 820,954.05 and 173,241.42

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Solution

The fourth proportional to 547,218.42, 820,954.05 and 173,241.42 is: 259,902.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,218.42 : 820,954.05 = 173,241.42 : x
  2. Step 2: Convert to fraction form
    547,218.42/820,954.05 = 173,241.42/x
  3. Step 3: Cross multiply
    547,218.42x = 820,954.05 × 173,241.42
  4. Step 4: Simplify right side
    547,218.42x = 142,223,245,376.75
  5. Step 5: Solve for x
    x = 142,223,245,376.75/547,218.42
  6. Step 6: Final answer
    x = 259,902.15

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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.