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Finding the Fourth Proportional to 70,939.92, 106,311.40 and 35,838.52

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Solution

The fourth proportional to 70,939.92, 106,311.40 and 35,838.52 is: 53,708.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,939.92 : 106,311.40 = 35,838.52 : x
  2. Step 2: Convert to fraction form
    70,939.92/106,311.40 = 35,838.52/x
  3. Step 3: Cross multiply
    70,939.92x = 106,311.40 × 35,838.52
  4. Step 4: Simplify right side
    70,939.92x = 3,810,043,235.13
  5. Step 5: Solve for x
    x = 3,810,043,235.13/70,939.92
  6. Step 6: Final answer
    x = 53,708.03

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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.