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Finding the Fourth Proportional to 222,488.20, 333,584.70 and 122,696.20

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Solution

The fourth proportional to 222,488.20, 333,584.70 and 122,696.20 is: 183,962.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,488.20 : 333,584.70 = 122,696.20 : x
  2. Step 2: Convert to fraction form
    222,488.20/333,584.70 = 122,696.20/x
  3. Step 3: Cross multiply
    222,488.20x = 333,584.70 × 122,696.20
  4. Step 4: Simplify right side
    222,488.20x = 40,929,575,068.14
  5. Step 5: Solve for x
    x = 40,929,575,068.14/222,488.20
  6. Step 6: Final answer
    x = 183,962.90

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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.