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Finding the Fourth Proportional to 172,446.70, 258,583.10 and 52,480.63

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Solution

The fourth proportional to 172,446.70, 258,583.10 and 52,480.63 is: 78,694.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,446.70 : 258,583.10 = 52,480.63 : x
  2. Step 2: Convert to fraction form
    172,446.70/258,583.10 = 52,480.63/x
  3. Step 3: Cross multiply
    172,446.70x = 258,583.10 × 52,480.63
  4. Step 4: Simplify right side
    172,446.70x = 13,570,604,857.24
  5. Step 5: Solve for x
    x = 13,570,604,857.24/172,446.70
  6. Step 6: Final answer
    x = 78,694.49

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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.