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Finding the Fourth Proportional to 161,202.52, 222,464.87 and 89,585.56

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Solution

The fourth proportional to 161,202.52, 222,464.87 and 89,585.56 is: 123,631.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,202.52 : 222,464.87 = 89,585.56 : x
  2. Step 2: Convert to fraction form
    161,202.52/222,464.87 = 89,585.56/x
  3. Step 3: Cross multiply
    161,202.52x = 222,464.87 × 89,585.56
  4. Step 4: Simplify right side
    161,202.52x = 19,929,639,959.28
  5. Step 5: Solve for x
    x = 19,929,639,959.28/161,202.52
  6. Step 6: Final answer
    x = 123,631.07

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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.