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Finding the Fourth Proportional to 231,588.40, 347,398.80 and 98,453.56

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Solution

The fourth proportional to 231,588.40, 347,398.80 and 98,453.56 is: 147,687.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,588.40 : 347,398.80 = 98,453.56 : x
  2. Step 2: Convert to fraction form
    231,588.40/347,398.80 = 98,453.56/x
  3. Step 3: Cross multiply
    231,588.40x = 347,398.80 × 98,453.56
  4. Step 4: Simplify right side
    231,588.40x = 34,202,648,599.73
  5. Step 5: Solve for x
    x = 34,202,648,599.73/231,588.40
  6. Step 6: Final answer
    x = 147,687.23

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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.