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Finding the Fourth Proportional to 104,054.70, 155,736.45 and 72,950.70

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Solution

The fourth proportional to 104,054.70, 155,736.45 and 72,950.70 is: 109,183.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,054.70 : 155,736.45 = 72,950.70 : x
  2. Step 2: Convert to fraction form
    104,054.70/155,736.45 = 72,950.70/x
  3. Step 3: Cross multiply
    104,054.70x = 155,736.45 × 72,950.70
  4. Step 4: Simplify right side
    104,054.70x = 11,361,083,043.02
  5. Step 5: Solve for x
    x = 11,361,083,043.02/104,054.70
  6. Step 6: Final answer
    x = 109,183.76

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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.