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Finding the Fourth Proportional to 222,666, 307,298.52 and 122,083.44

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Solution

The fourth proportional to 222,666, 307,298.52 and 122,083.44 is: 168,485.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,666 : 307,298.52 = 122,083.44 : x
  2. Step 2: Convert to fraction form
    222,666/307,298.52 = 122,083.44/x
  3. Step 3: Cross multiply
    222,666x = 307,298.52 × 122,083.44
  4. Step 4: Simplify right side
    222,666x = 37,516,060,428.51
  5. Step 5: Solve for x
    x = 37,516,060,428.51/222,666
  6. Step 6: Final answer
    x = 168,485.81

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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.