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Finding the Fourth Proportional to 253,669.50, 350,059.62 and 140,489.82

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Solution

The fourth proportional to 253,669.50, 350,059.62 and 140,489.82 is: 193,873.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,669.50 : 350,059.62 = 140,489.82 : x
  2. Step 2: Convert to fraction form
    253,669.50/350,059.62 = 140,489.82/x
  3. Step 3: Cross multiply
    253,669.50x = 350,059.62 × 140,489.82
  4. Step 4: Simplify right side
    253,669.50x = 49,179,813,003.07
  5. Step 5: Solve for x
    x = 49,179,813,003.07/253,669.50
  6. Step 6: Final answer
    x = 193,873.58

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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.