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Finding the Fourth Proportional to 163,310.57, 244,963.68 and 79,078.28

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Solution

The fourth proportional to 163,310.57, 244,963.68 and 79,078.28 is: 118,616.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,310.57 : 244,963.68 = 79,078.28 : x
  2. Step 2: Convert to fraction form
    163,310.57/244,963.68 = 79,078.28/x
  3. Step 3: Cross multiply
    163,310.57x = 244,963.68 × 79,078.28
  4. Step 4: Simplify right side
    163,310.57x = 19,371,306,476.87
  5. Step 5: Solve for x
    x = 19,371,306,476.87/163,310.57
  6. Step 6: Final answer
    x = 118,616.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.