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Finding the Fourth Proportional to 161,364.55, 222,685.94 and 89,744.60

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Solution

The fourth proportional to 161,364.55, 222,685.94 and 89,744.60 is: 123,849.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,364.55 : 222,685.94 = 89,744.60 : x
  2. Step 2: Convert to fraction form
    161,364.55/222,685.94 = 89,744.60/x
  3. Step 3: Cross multiply
    161,364.55x = 222,685.94 × 89,744.60
  4. Step 4: Simplify right side
    161,364.55x = 19,984,860,610.92
  5. Step 5: Solve for x
    x = 19,984,860,610.92/161,364.55
  6. Step 6: Final answer
    x = 123,849.14

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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.