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Finding the Fourth Proportional to 193,523.47, 290,397.36 and 81,193.75

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Solution

The fourth proportional to 193,523.47, 290,397.36 and 81,193.75 is: 121,837.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,523.47 : 290,397.36 = 81,193.75 : x
  2. Step 2: Convert to fraction form
    193,523.47/290,397.36 = 81,193.75/x
  3. Step 3: Cross multiply
    193,523.47x = 290,397.36 × 81,193.75
  4. Step 4: Simplify right side
    193,523.47x = 23,578,450,648.50
  5. Step 5: Solve for x
    x = 23,578,450,648.50/193,523.47
  6. Step 6: Final answer
    x = 121,837.68

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.