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Finding the Fourth Proportional to 76,103.71, 104,977.20 and 50,262.42

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Solution

The fourth proportional to 76,103.71, 104,977.20 and 50,262.42 is: 69,331.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,103.71 : 104,977.20 = 50,262.42 : x
  2. Step 2: Convert to fraction form
    76,103.71/104,977.20 = 50,262.42/x
  3. Step 3: Cross multiply
    76,103.71x = 104,977.20 × 50,262.42
  4. Step 4: Simplify right side
    76,103.71x = 5,276,407,591.94
  5. Step 5: Solve for x
    x = 5,276,407,591.94/76,103.71
  6. Step 6: Final answer
    x = 69,331.81

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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.