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Finding the Fourth Proportional to 161,175.60, 222,371.40 and 96,631.56

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Solution

The fourth proportional to 161,175.60, 222,371.40 and 96,631.56 is: 133,321.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,175.60 : 222,371.40 = 96,631.56 : x
  2. Step 2: Convert to fraction form
    161,175.60/222,371.40 = 96,631.56/x
  3. Step 3: Cross multiply
    161,175.60x = 222,371.40 × 96,631.56
  4. Step 4: Simplify right side
    161,175.60x = 21,488,095,281.38
  5. Step 5: Solve for x
    x = 21,488,095,281.38/161,175.60
  6. Step 6: Final answer
    x = 133,321.02

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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.