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Finding the Fourth Proportional to 338,634.50, 467,330.19 and 187,731.50

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Solution

The fourth proportional to 338,634.50, 467,330.19 and 187,731.50 is: 259,077.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,634.50 : 467,330.19 = 187,731.50 : x
  2. Step 2: Convert to fraction form
    338,634.50/467,330.19 = 187,731.50/x
  3. Step 3: Cross multiply
    338,634.50x = 467,330.19 × 187,731.50
  4. Step 4: Simplify right side
    338,634.50x = 87,732,597,563.99
  5. Step 5: Solve for x
    x = 87,732,597,563.99/338,634.50
  6. Step 6: Final answer
    x = 259,077.55

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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.