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Finding the Fourth Proportional to 222,442.80, 333,664.20 and 200,281.20

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Solution

The fourth proportional to 222,442.80, 333,664.20 and 200,281.20 is: 300,421.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,442.80 : 333,664.20 = 200,281.20 : x
  2. Step 2: Convert to fraction form
    222,442.80/333,664.20 = 200,281.20/x
  3. Step 3: Cross multiply
    222,442.80x = 333,664.20 × 200,281.20
  4. Step 4: Simplify right side
    222,442.80x = 66,826,666,373.04
  5. Step 5: Solve for x
    x = 66,826,666,373.04/222,442.80
  6. Step 6: Final answer
    x = 300,421.80

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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.