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Finding the Fourth Proportional to 79,704.92, 109,991.96 and 43,894.17

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Solution

The fourth proportional to 79,704.92, 109,991.96 and 43,894.17 is: 60,573.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,704.92 : 109,991.96 = 43,894.17 : x
  2. Step 2: Convert to fraction form
    79,704.92/109,991.96 = 43,894.17/x
  3. Step 3: Cross multiply
    79,704.92x = 109,991.96 × 43,894.17
  4. Step 4: Simplify right side
    79,704.92x = 4,828,005,790.87
  5. Step 5: Solve for x
    x = 4,828,005,790.87/79,704.92
  6. Step 6: Final answer
    x = 60,573.50

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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.