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Finding the Fourth Proportional to 79,286.17, 118,949.09 and 55,958.17

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Solution

The fourth proportional to 79,286.17, 118,949.09 and 55,958.17 is: 83,951.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,286.17 : 118,949.09 = 55,958.17 : x
  2. Step 2: Convert to fraction form
    79,286.17/118,949.09 = 55,958.17/x
  3. Step 3: Cross multiply
    79,286.17x = 118,949.09 × 55,958.17
  4. Step 4: Simplify right side
    79,286.17x = 6,656,173,399.57
  5. Step 5: Solve for x
    x = 6,656,173,399.57/79,286.17
  6. Step 6: Final answer
    x = 83,951.25

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1.5x scale

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.