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Finding the Fourth Proportional to 331,937.75, 458,072.00 and 188,697.80

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Solution

The fourth proportional to 331,937.75, 458,072.00 and 188,697.80 is: 260,401.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,937.75 : 458,072.00 = 188,697.80 : x
  2. Step 2: Convert to fraction form
    331,937.75/458,072.00 = 188,697.80/x
  3. Step 3: Cross multiply
    331,937.75x = 458,072.00 × 188,697.80
  4. Step 4: Simplify right side
    331,937.75x = 86,437,175,407.75
  5. Step 5: Solve for x
    x = 86,437,175,407.75/331,937.75
  6. Step 6: Final answer
    x = 260,401.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.