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Finding the Fourth Proportional to 222,347.69, 306,839.42 and 120,373.11

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Solution

The fourth proportional to 222,347.69, 306,839.42 and 120,373.11 is: 166,114.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,347.69 : 306,839.42 = 120,373.11 : x
  2. Step 2: Convert to fraction form
    222,347.69/306,839.42 = 120,373.11/x
  3. Step 3: Cross multiply
    222,347.69x = 306,839.42 × 120,373.11
  4. Step 4: Simplify right side
    222,347.69x = 36,935,213,721.80
  5. Step 5: Solve for x
    x = 36,935,213,721.80/222,347.69
  6. Step 6: Final answer
    x = 166,114.68

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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.