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Finding the Fourth Proportional to 258,493.47, 356,772.16 and 167,722.03

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Solution

The fourth proportional to 258,493.47, 356,772.16 and 167,722.03 is: 231,489.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,493.47 : 356,772.16 = 167,722.03 : x
  2. Step 2: Convert to fraction form
    258,493.47/356,772.16 = 167,722.03/x
  3. Step 3: Cross multiply
    258,493.47x = 356,772.16 × 167,722.03
  4. Step 4: Simplify right side
    258,493.47x = 59,838,550,922.68
  5. Step 5: Solve for x
    x = 59,838,550,922.68/258,493.47
  6. Step 6: Final answer
    x = 231,489.60

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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.