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Finding the Fourth Proportional to 167,812.20, 251,718.30 and 137,092.20

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Solution

The fourth proportional to 167,812.20, 251,718.30 and 137,092.20 is: 205,638.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,812.20 : 251,718.30 = 137,092.20 : x
  2. Step 2: Convert to fraction form
    167,812.20/251,718.30 = 137,092.20/x
  3. Step 3: Cross multiply
    167,812.20x = 251,718.30 × 137,092.20
  4. Step 4: Simplify right side
    167,812.20x = 34,508,615,527.26
  5. Step 5: Solve for x
    x = 34,508,615,527.26/167,812.20
  6. Step 6: Final answer
    x = 205,638.30

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Why These Related Problems?

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