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Finding the Fourth Proportional to 161,387.24, 222,719.78 and 88,793.16

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Solution

The fourth proportional to 161,387.24, 222,719.78 and 88,793.16 is: 122,537.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,387.24 : 222,719.78 = 88,793.16 : x
  2. Step 2: Convert to fraction form
    161,387.24/222,719.78 = 88,793.16/x
  3. Step 3: Cross multiply
    161,387.24x = 222,719.78 × 88,793.16
  4. Step 4: Simplify right side
    161,387.24x = 19,775,993,060.70
  5. Step 5: Solve for x
    x = 19,775,993,060.70/161,387.24
  6. Step 6: Final answer
    x = 122,537.53

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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.