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Finding the Fourth Proportional to 222,405.10, 333,607.65 and 214,531.90

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Solution

The fourth proportional to 222,405.10, 333,607.65 and 214,531.90 is: 321,797.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,405.10 : 333,607.65 = 214,531.90 : x
  2. Step 2: Convert to fraction form
    222,405.10/333,607.65 = 214,531.90/x
  3. Step 3: Cross multiply
    222,405.10x = 333,607.65 × 214,531.90
  4. Step 4: Simplify right side
    222,405.10x = 71,569,483,009.04
  5. Step 5: Solve for x
    x = 71,569,483,009.04/222,405.10
  6. Step 6: Final answer
    x = 321,797.85

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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.