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Finding the Fourth Proportional to 172,425.62, 258,662.70 and 60,089.69

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Solution

The fourth proportional to 172,425.62, 258,662.70 and 60,089.69 is: 90,143.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,425.62 : 258,662.70 = 60,089.69 : x
  2. Step 2: Convert to fraction form
    172,425.62/258,662.70 = 60,089.69/x
  3. Step 3: Cross multiply
    172,425.62x = 258,662.70 × 60,089.69
  4. Step 4: Simplify right side
    172,425.62x = 15,542,962,104.22
  5. Step 5: Solve for x
    x = 15,542,962,104.22/172,425.62
  6. Step 6: Final answer
    x = 90,143.00

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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.