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Finding the Fourth Proportional to 171,872.70, 258,003.45 and 92,946.30

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Solution

The fourth proportional to 171,872.70, 258,003.45 and 92,946.30 is: 139,524.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,872.70 : 258,003.45 = 92,946.30 : x
  2. Step 2: Convert to fraction form
    171,872.70/258,003.45 = 92,946.30/x
  3. Step 3: Cross multiply
    171,872.70x = 258,003.45 × 92,946.30
  4. Step 4: Simplify right side
    171,872.70x = 23,980,466,064.74
  5. Step 5: Solve for x
    x = 23,980,466,064.74/171,872.70
  6. Step 6: Final answer
    x = 139,524.58

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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.