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Finding the Fourth Proportional to 161,403.13, 222,748.68 and 89,788.47

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Solution

The fourth proportional to 161,403.13, 222,748.68 and 89,788.47 is: 123,914.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,403.13 : 222,748.68 = 89,788.47 : x
  2. Step 2: Convert to fraction form
    161,403.13/222,748.68 = 89,788.47/x
  3. Step 3: Cross multiply
    161,403.13x = 222,748.68 × 89,788.47
  4. Step 4: Simplify right side
    161,403.13x = 20,000,263,171.72
  5. Step 5: Solve for x
    x = 20,000,263,171.72/161,403.13
  6. Step 6: Final answer
    x = 123,914.96

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.