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Finding the Fourth Proportional to 77,179.97, 106,524.90 and 50,274.47

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Solution

The fourth proportional to 77,179.97, 106,524.90 and 50,274.47 is: 69,389.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,179.97 : 106,524.90 = 50,274.47 : x
  2. Step 2: Convert to fraction form
    77,179.97/106,524.90 = 50,274.47/x
  3. Step 3: Cross multiply
    77,179.97x = 106,524.90 × 50,274.47
  4. Step 4: Simplify right side
    77,179.97x = 5,355,482,356.68
  5. Step 5: Solve for x
    x = 5,355,482,356.68/77,179.97
  6. Step 6: Final answer
    x = 69,389.54

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1.5x scale

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.