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Finding the Fourth Proportional to 222,521.69, 333,778.89 and 54,043.40

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Solution

The fourth proportional to 222,521.69, 333,778.89 and 54,043.40 is: 81,064.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,521.69 : 333,778.89 = 54,043.40 : x
  2. Step 2: Convert to fraction form
    222,521.69/333,778.89 = 54,043.40/x
  3. Step 3: Cross multiply
    222,521.69x = 333,778.89 × 54,043.40
  4. Step 4: Simplify right side
    222,521.69x = 18,038,546,063.83
  5. Step 5: Solve for x
    x = 18,038,546,063.83/222,521.69
  6. Step 6: Final answer
    x = 81,064.21

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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.