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Finding the Fourth Proportional to 172,496.39, 258,662.63 and 60,162.95

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Solution

The fourth proportional to 172,496.39, 258,662.63 and 60,162.95 is: 90,215.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,496.39 : 258,662.63 = 60,162.95 : x
  2. Step 2: Convert to fraction form
    172,496.39/258,662.63 = 60,162.95/x
  3. Step 3: Cross multiply
    172,496.39x = 258,662.63 × 60,162.95
  4. Step 4: Simplify right side
    172,496.39x = 15,561,907,672.62
  5. Step 5: Solve for x
    x = 15,561,907,672.62/172,496.39
  6. Step 6: Final answer
    x = 90,215.85

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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.