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Finding the Fourth Proportional to 75,776.50, 104,607.44 and 43,933.78

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Solution

The fourth proportional to 75,776.50, 104,607.44 and 43,933.78 is: 60,649.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,776.50 : 104,607.44 = 43,933.78 : x
  2. Step 2: Convert to fraction form
    75,776.50/104,607.44 = 43,933.78/x
  3. Step 3: Cross multiply
    75,776.50x = 104,607.44 × 43,933.78
  4. Step 4: Simplify right side
    75,776.50x = 4,595,800,255.32
  5. Step 5: Solve for x
    x = 4,595,800,255.32/75,776.50
  6. Step 6: Final answer
    x = 60,649.41

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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.