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Finding the Fourth Proportional to 163,310.82, 244,964.06 and 79,078.52

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Solution

The fourth proportional to 163,310.82, 244,964.06 and 79,078.52 is: 118,616.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,310.82 : 244,964.06 = 79,078.52 : x
  2. Step 2: Convert to fraction form
    163,310.82/244,964.06 = 79,078.52/x
  3. Step 3: Cross multiply
    163,310.82x = 244,964.06 × 79,078.52
  4. Step 4: Simplify right side
    163,310.82x = 19,371,393,697.78
  5. Step 5: Solve for x
    x = 19,371,393,697.78/163,310.82
  6. Step 6: Final answer
    x = 118,616.72

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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.