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Finding the Fourth Proportional to 283,897.85, 391,787.79 and 163,063.38

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Solution

The fourth proportional to 283,897.85, 391,787.79 and 163,063.38 is: 225,032.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,897.85 : 391,787.79 = 163,063.38 : x
  2. Step 2: Convert to fraction form
    283,897.85/391,787.79 = 163,063.38/x
  3. Step 3: Cross multiply
    283,897.85x = 391,787.79 × 163,063.38
  4. Step 4: Simplify right side
    283,897.85x = 63,886,238,505.87
  5. Step 5: Solve for x
    x = 63,886,238,505.87/283,897.85
  6. Step 6: Final answer
    x = 225,032.48

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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.