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Finding the Fourth Proportional to 338,706.48, 467,436 and 187,803.48

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Solution

The fourth proportional to 338,706.48, 467,436 and 187,803.48 is: 259,180.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,706.48 : 467,436 = 187,803.48 : x
  2. Step 2: Convert to fraction form
    338,706.48/467,436 = 187,803.48/x
  3. Step 3: Cross multiply
    338,706.48x = 467,436 × 187,803.48
  4. Step 4: Simplify right side
    338,706.48x = 87,786,107,477.28
  5. Step 5: Solve for x
    x = 87,786,107,477.28/338,706.48
  6. Step 6: Final answer
    x = 259,180.48

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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.