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Finding the Fourth Proportional to 172,497.39, 258,664.13 and 60,163.95

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Solution

The fourth proportional to 172,497.39, 258,664.13 and 60,163.95 is: 90,217.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,497.39 : 258,664.13 = 60,163.95 : x
  2. Step 2: Convert to fraction form
    172,497.39/258,664.13 = 60,163.95/x
  3. Step 3: Cross multiply
    172,497.39x = 258,664.13 × 60,163.95
  4. Step 4: Simplify right side
    172,497.39x = 15,562,255,784.11
  5. Step 5: Solve for x
    x = 15,562,255,784.11/172,497.39
  6. Step 6: Final answer
    x = 90,217.34

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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.