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Finding the Fourth Proportional to 259,392.97, 358,128.90 and 162,729.36

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Solution

The fourth proportional to 259,392.97, 358,128.90 and 162,729.36 is: 224,671.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,392.97 : 358,128.90 = 162,729.36 : x
  2. Step 2: Convert to fraction form
    259,392.97/358,128.90 = 162,729.36/x
  3. Step 3: Cross multiply
    259,392.97x = 358,128.90 × 162,729.36
  4. Step 4: Simplify right side
    259,392.97x = 58,278,086,694.50
  5. Step 5: Solve for x
    x = 58,278,086,694.50/259,392.97
  6. Step 6: Final answer
    x = 224,671.03

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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.