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Finding the Fourth Proportional to 72,067.45, 99,486.78 and 41,846.88

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Solution

The fourth proportional to 72,067.45, 99,486.78 and 41,846.88 is: 57,768.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,067.45 : 99,486.78 = 41,846.88 : x
  2. Step 2: Convert to fraction form
    72,067.45/99,486.78 = 41,846.88/x
  3. Step 3: Cross multiply
    72,067.45x = 99,486.78 × 41,846.88
  4. Step 4: Simplify right side
    72,067.45x = 4,163,211,236.17
  5. Step 5: Solve for x
    x = 4,163,211,236.17/72,067.45
  6. Step 6: Final answer
    x = 57,768.26

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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.