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Finding the Fourth Proportional to 253,912.88, 350,391.48 and 153,293.36

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Solution

The fourth proportional to 253,912.88, 350,391.48 and 153,293.36 is: 211,539.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,912.88 : 350,391.48 = 153,293.36 : x
  2. Step 2: Convert to fraction form
    253,912.88/350,391.48 = 153,293.36/x
  3. Step 3: Cross multiply
    253,912.88x = 350,391.48 × 153,293.36
  4. Step 4: Simplify right side
    253,912.88x = 53,712,687,284.57
  5. Step 5: Solve for x
    x = 53,712,687,284.57/253,912.88
  6. Step 6: Final answer
    x = 211,539.83

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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.