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Finding the Fourth Proportional to 172,474.52, 258,712.92 and 60,154.31

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Solution

The fourth proportional to 172,474.52, 258,712.92 and 60,154.31 is: 90,231.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,474.52 : 258,712.92 = 60,154.31 : x
  2. Step 2: Convert to fraction form
    172,474.52/258,712.92 = 60,154.31/x
  3. Step 3: Cross multiply
    172,474.52x = 258,712.92 × 60,154.31
  4. Step 4: Simplify right side
    172,474.52x = 15,562,697,837.47
  5. Step 5: Solve for x
    x = 15,562,697,837.47/172,474.52
  6. Step 6: Final answer
    x = 90,231.87

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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.