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Finding the Fourth Proportional to 222,415.90, 333,667.44 and 72,615.98

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Solution

The fourth proportional to 222,415.90, 333,667.44 and 72,615.98 is: 108,938.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,415.90 : 333,667.44 = 72,615.98 : x
  2. Step 2: Convert to fraction form
    222,415.90/333,667.44 = 72,615.98/x
  3. Step 3: Cross multiply
    222,415.90x = 333,667.44 × 72,615.98
  4. Step 4: Simplify right side
    222,415.90x = 24,229,588,149.69
  5. Step 5: Solve for x
    x = 24,229,588,149.69/222,415.90
  6. Step 6: Final answer
    x = 108,938.20

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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.