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Finding the Fourth Proportional to 222,792.39, 307,453.57 and 120,817.82

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Solution

The fourth proportional to 222,792.39, 307,453.57 and 120,817.82 is: 166,728.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,792.39 : 307,453.57 = 120,817.82 : x
  2. Step 2: Convert to fraction form
    222,792.39/307,453.57 = 120,817.82/x
  3. Step 3: Cross multiply
    222,792.39x = 307,453.57 × 120,817.82
  4. Step 4: Simplify right side
    222,792.39x = 37,145,871,008.63
  5. Step 5: Solve for x
    x = 37,145,871,008.63/222,792.39
  6. Step 6: Final answer
    x = 166,728.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.