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Finding the Fourth Proportional to 252,608.25, 348,599.42 and 139,431.03

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Solution

The fourth proportional to 252,608.25, 348,599.42 and 139,431.03 is: 192,414.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,608.25 : 348,599.42 = 139,431.03 : x
  2. Step 2: Convert to fraction form
    252,608.25/348,599.42 = 139,431.03/x
  3. Step 3: Cross multiply
    252,608.25x = 348,599.42 × 139,431.03
  4. Step 4: Simplify right side
    252,608.25x = 48,605,576,188.00
  5. Step 5: Solve for x
    x = 48,605,576,188.00/252,608.25
  6. Step 6: Final answer
    x = 192,414.84

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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.